Monday, October 25, 2010

GPS vehicle location detection system



Global Positioning System GPS is the abbreviation in English, which means Global Positioning System. Global Positioning System navigation satellite test the use of time and distance, so that the user anywhere on earth, can calculate the position they find themselves.
Car of the GPS receivers receive satellite positioning data sent per second, and in accordance with the above from three different satellites to calculate their own data the coordinates of geographical location.
GPS system components Part-GPS satellite constellation space;
Ground control section - the ground control system;
Part-GPS user equipment signals receivers.
Application of mature technologies GPS global satellite positioning system technology
Computer Network Technology
Wireless communication technology
Data storage, data retrieval and data warehouse technology
Geographic Information Technology (GIS)
Call Center
Vehicle control

System components
System is mainly involved vehicles, control centers, SMS short message center of three parts
Car machines (car unit)

System composition as shown below



Control Center
The control center by the call center system, the total control center systems, Internet services, systems management system, geographic information systems, data analysis system and other components. Including the GPS satellite positioning technology, wireless communication technology, digital transmission technology, adaptive technology, encryption, remote control technology, computer network technology. Geographical information system (GIS), digital maps, communication software, management software, control software and other software, the organic co-ordination of integration as an accurate, real-time, secure, reliable information processing systems.

Control center responsible for controlling the operation of the wireless communication network, receiving information transmitted from mobile unit and the information sent to the monitoring platform; monitoring platform is mainly based on the electronic map to monitor and control the operating platform, have a very convenient information database and powerful electronic map operation functions.

Hardware devices including: network equipment, storage devices, computing devices, display devices, lighting and sound equipment, digital and voice communications equipment and other components.
Software includes: operating system software, database software, communications software, application software, etc..
Management: including monitoring staff on duty, foreman, public information dissemination staff, maintenance personnel.

SMS Short Message Center
Short Message Center is used for wireless communication to send and receive text messages in the system, because our system uses GSM, SMS short message transmission, in order to speed up our data transfer speed, we need to build your own short message center or in the telecommunications sector the establishment of a dedicated messaging system to improve the whole system as priority, to ensure timely and reliable data, reduced data transmission time delay.

GPS Vehicle Location and composition of anti-theft system
Car GPS anti-theft unit n control center (management platform, short message center)



Main features:
GPS positioning, alarm and monitoring and dispatching functions
Car anti-theft Anti-hijacking function
High degree of integration of two functions
Car GPS security modules
GPS receiver module
Vehicle anti-theft module
Data Communication Module





System interactions


Control Center software main interface diagram



Wireless
Wireless communication is the vehicle control unit and contact the media, which can achieve data and voice transmission.
In order to save communication costs can also use the GSM, GPRS, CDPD, CDMA digital short message (SMS) channel






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Tuesday, October 19, 2010

LINQ subquery and delay the implementation of programming examples



Many friends and delay the implementation of LINQ subquery usage is not very clear, the following will give you an example to show the relevant LINQ subquery usage.

LINQ subquery

LINQ subquery is a query that contains another query Lambda expressions. The following example uses a LINQ query against the basketball star son's last name sort:



string [] players = ("Tim Ducan", "Lebrom James", "Kobe Byrant");
IEnumerable q = players.OrderBy (m => m.Split (). Last ()); In this one, Last is a LINQ sub query, q represents an external inquiry.

Sub-query in LINQ, Lambda expressions you can use any possible right of expression of C # syntax. LINQ subquery is a simple C # expression, which means that all applicable rules in LINQ sub query expression can be derived to Lambda ceremony.

The following query to get a character array of length equal to all meet the minimum length of the character sequence:



string [] names = ("James", "Jack", "Landy", "C.Y", "Jay");
IEnumerable q = names
. Where (n => n.Length ==
names.OrderBy (n2 => n2.Length)
. Select (n2 => n2.Length). First ()
);
foreach (var s in q)
(
Console.WriteLine (s); / / C.Y, Jay
) Sub for LINQ queries, can refer to the Lambda parameters or external iteration variables (in the compound query). Such as the above example, if the expression used to OrderBy (n => n.Length) rather than n2 will be used if an error message:



IEnumerable q =
from n in names
where n.Length ==
(From n2 in names
orderby n2.Length
select n2.Length). First ()
select n; for this example, we can see the corresponding complex queries written:



IEnumerable q =
from n in names
where n.Length ==
names.OrderBy (n2 => n2.Length). First (). Length
select n; external iteration variables n in the context of LINQ subquery is visible, we can not reuse it as the LINQ subquery within the iteration variable.

LINQ subquery will be executed corresponding to the time of Lambda expressions to implement, their implementation depends on the outer query, it can be said from the outside to inside to deal with. Local inquiries in full compliance with this model, but interpreted query (such as LINQ to SQL) is just a concept to follow it.

Inquiries before we can use a more concise wording:



IEnumerable q =
from n in names
where n.Length == names.Min (n2 => n2.Length)
select n; If you use the Min aggregate functions can be further simplified:

IEnumerable q = from n in names where n.Length == names.Min (n2 => n2.Length) select n;

In fact, as n2.Length loop when the external query recalculated every time, which in some cases may lead to efficiency, to avoid this problem, we can separate the LINQ subquery:



int len = names.Min (n => n.Length);

IEnumerable query = from n in names
where n.Length == len
select n; sub-query and delay the implementation of

Sub-query in LINQ to return a single element or aggregate class of operators, such as first or Count, and not the immediate implementation of mandatory external inquiry, also said an external inquiry still has the capacity of the delay. This is because LINQ sub query is being indirectly call - if the local inquiry, is through a proxy (delegate), if the contact was through the interpretative expression tree (expression tree).

An interesting phenomenon is that when your LINQ sub query that contains a Select expression, if one is a local query, you are actually their divergence into a sequence of queries - and each one has its ability to delay implementation. That the effect transparent, because it can significantly improve efficiency.







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Thursday, October 7, 2010

General manager is not alone a hero


Brilliant performance brought distress

Mr. Wright is a very successful farmers for the entrepreneurs. Overseas company he created 20 years ago by 2,000 Yuan, and become the first batch of reform and opening up a car parts manufacturer, in 2002 the output value and total assets in excess of 100 million yuan. He concluded that to today, his business gone through three stages of development. Initially, he was a man not only the Lord has the outside, what a person by his pipe. Later, business development, and to support the development of his family members to participate in the tomb of Fu anchor firm foundation 5 顐?Yan Xu Yi Gui pull 顑?message after which Amaranthus trembling slightly spacious armed alfalfa 顑?闅?Xing Yi Gui little coin test tour roundworm complain Fu Xi mound to find di 鈷?sodium enterprises lazy groove playing 顑?顛?顎?R flea pod Xu Yi Yi shrink from Amaranthus brew approach of taking strike Shu Huan River Bank Na 9唯 scorpion playing 顑?顎?Wang 顚?U shrimp Macrobrachium Dang admonished the industry shortage of Amaranthus playing 顑?Huang Jie Wang 顙?cochlear Wang S Worm? 0 to age, who studied mechanical engineering. There in the state-owned enterprises and foreign enterprises as middle-level leadership positions in work experience. According to people who are familiar with Mr. Yu, he is very capable, can quickly grasp the nature of the matter and propose solutions. He is very confident, on any view of things has its own unique and very eloquent, and of what can come out of a round after round. He was very decisive and subordinates Yueyibuer. Mr. Wright Mr. Ren Mingyou as general manager, responsible for daily operations within the company; its chairman, director of market development and customer relations. Mr. Yu later as general manager, with his resolute and skilful, and soon the incompetent members of the family away from management positions, proper arrangements for the management of the company to a new level.

Overseas companies located in more remote towns, the local shortage of human resources. In addition to local economic development, many enterprises lack of personnel issues become more prominent. To support the work of Mr. Yu, Tsang Trustee enlist only one around. However, these people do not stay in there long. Good performance in other local people, where are reflected in the poor, Mr. Yu, the same people go after leaving Dahua Company to other companies, new companies are well received. Therefore, 5 years later, there was a United Overseas companies fault, the above is the general manager, following the grass-roots workers, no middle management. Internal operational problems, technical issues, quality issues resolved personally by Mr. Yu. The result is a long-term do not increase product quality, the quality of repeated warnings by the customer, quality system exists in name only.

Customers, suppliers and many friends who are familiar with the situation that Mr. Wright, general manager should be replaced. But he did not think so. In his view, Mr. Yu is the potential energy of people, business is not the current situation because of his ability, but lack of talent in society. Therefore, Dahua company's current management issues in the current social environment there is no solution to the problems. In order for the company off the hook, Mr. Wright stepped up public relations efforts, enterprise customers want the same good relations with the staff to shut their mouths, thereby reducing customer complaints.

Clearly, Mr. Wright entered a misunderstanding. So, what is it for Mr. Wright walked into the wrong area then? How can we help him correct the errors, so that his business out of the current situation?

Success Xiao He, Xiao He also lost

Mr. Wright is a very capable person. With his personal capacity, austerity and hard work, he succeeded. Thus, in his mind of such a belief is formed: as long as the company found a capable person can do a good job (we control this concept is called "hotshots mill plans"). Mr. Wright's public relations is particularly high, relying on his ability to research, market development, he gained great success. In this way, he again another belief: as long as the money spent to good relations with the staff, then all things are easy to handle, the quality can be almost no problem (we control this concept called "universal relationship map" ). Over the years, this two guided the behavior of Mr. Wright's business.

When the company's business development to his personal possession, but come, "capable mill map" should be to find capable people to tell him to help him control. He not only managed to go around looking for a capable, but also went around looking for technical genius. However, the "genius factory system map" when the company is small, is useful: the micromanager could come from a capable buttoned up and done very beautiful. However, when the company developed to a certain scale, the "genius factory system map" was not useful. The reason is simple, personal time and energy is limited, not enough of a capable, need a lot of capable people. However, without proper organization and leadership, may appear more than capable with internal friction.

"Homo habilis mill plan" a major misunderstanding is to Homo habilis, managers and leaders confused. Certain aspects of any particular person can be referred to as "capable." The most capable people in the normal sense of their own officers, they are not good for someone doing things, often have the tendency of individual heroism, they often highlight the individual for fun, not for Tuandui collaboration, not interested. The basic task of management is to do good for others dry. Manager's ability is not reflected in that he would do, but also at how he can effectively do you let people know things. The role of leadership is reflected in the spirit of how to use a different cultural background and different professional standards, the staff together different personality, personal development of staff with the development of enterprise unified together, the companies look for employees with the intrinsic value of employee orientation, and thereby allow employees to contribute their wisdom to the enterprise all. These three types of people are useful for business people. The daily operation of enterprises in order to complete the task that requires all capable to; to allow effective operation, enterprises need to establish a scientific management system and efficient business processes, development of scientific performance management and incentive mechanism, requiring managers ; but only the system is not enough, but also spiritual, but also need a healthy corporate culture and rooted in this culture of the team, so that staff can play to the extreme, so they need a leader.

In today's environment, the general manager should be the characteristics of both managers and leaders of people. General manager for the system should not only be building for the enterprise, but also should be Wenhua building enterprise; 涓嶄粎 to be completed on quality, cost, revenue, markets and other aspects, "fixed target", but should also complete the team building, Renyuanpeiyang so soft Ren Wu. General Manager of the success of an enterprise should be "indispensable" and general manager, general manager without success is the general manager of enterprise can not leave even for a moment. Only through to reach this level of management will have the capacity for sustained development, will be in technology, equipment and products other than access to other core competencies. The company's general manager of Dahua has only a primary level of capable managers. Different from the general genius, he has some management skills, be able to proceed with the establishment of rules and regulations. As for how to give full play to the role of rules and regulations, how to set up the team, how to cultivate talent, his ability and vision to become some not enough. However, he not aware of this. Instead, he makes the characteristics of managers capable plus anything else he is to behave self-confidence, even in matters outside his expertise he is also very difficult to listen to the views of others; and the people show a general conversation were higher with low attitude. His mentality, making the company unable to retain talent.

Of course, "capable mill map" Overseas companies now are not causing the problem facing the only reason. The same effect on Mr. Wright to improve the internal management efforts were "relationship universal map." Hua and domestic car manufacturers in the majority of senior management to establish a good relationship. These relationships help him smoothly into the major car manufacturers to obtain a larger share of supply. This creates a "relationship universal map." When the company's product quality Dahua some quality defects, the "genius factory system map" to tell Mr. Wright that his administration has been under current conditions there is no room for improvement (because of his general manager is a big hotshots) Therefore, by strengthening internal management to improve the quality, not much hope. In the meantime, "Universal relationship map" has told him, you can hide some of their products through relationships defects, so they do not report the customer's quality is reflected. Thus, Mr. Wright on a massive public relations campaign, like in order to reduce customer complaints.

Success Xiao He, Xiao He also defeated. "Homo habilis mill plans" and "Universal relationship map" to UOB brings yesterday's brilliant, but it fell into its present predicament. Mode of operation of enterprises in the past the more successful, more likely to become in the new environment obstacles to the further development of enterprises. Overseas companies are caught in the storm it past success patterns.

Get rid of the old almanac, a new mental map

Overseas companies rely on successful models in the past, and today has been largely ineffective. Therefore, to get rid of the plight of today, companies must give up these Dahua the old model, according to the new realities in accordance with the new ideas and establish a new mental map (way of thinking and behavior) to guide the operation today.

First, Mr. Wright and Mr. Yu have to change their ideas. They should realize that "genius mill map" of the limitations, recognizing that when the company developed to a certain scale, the leading enterprise forward is not a personal hero or genius, but the characteristics of both managers and leaders of professional managers people. Mr. Wright also need to get rid of "universal relationship map" of the constraints. He should realize that relationship can help him to enter a market, but a good performance after entering the market does not depend on relations can in return. Because the market is increasingly competitive, each firm will eventually face the fierce market competition. In the face of such a competition, not the slightest false doping, otherwise, will eventually be rejected by the market. He with the good relations between customers and not a substitute for the future of enterprise customers, enterprise customers can not replace the staff member's personal future. Therefore, to resolve customer complaints of the most fundamental and effective way to improve the quality of their products and services.

Second, Tsang should take some measures of human resources. These include 1) the general manager sent to participate in the development of leadership training, it can ask consultants through training Mr. Fang Shiyou leadership development, so he has a capable management qualities to become managers and leaders in both those qualities of professional managers; 2) If the first measure does not work or effective too slow, then we must consider both managers and leaders to employ professional managers qualities to give Yu, assistant to do, or act as general manager (of course, to properly handle the issue of Mr. Yu, spiritually and economically for his contribution to the company and fully confirmed).

Third, Mr. Wright, general manager of the assessment should be changed to the standard. Assessment of the general manager not only to be "fixed target" (such as profits, costs, return on investment, market share, etc.), but also a "soft target" that the development of human culture. Human development includes two aspects. First, the training and coaching of staff through training and coaching to improve the skills of staff; one to help employees improve their ability to adapt to the requirements under the business environment quickly change their way of thinking and behavior, so businesses To get enough resilience to be successful in the rapidly changing competitive environment challenges. As for how to test, general manager of human development in the well or bad, there are many ways, but the most important is to see a) whether to put in their organization, general manager of the internal Biande "optional" rather than Shi Wu big and small must be personally attended to; 2) quality management system, including rules and regulations including the staff really become conscious action. The second indicator also reflects the established management system is reasonable and effective.

Fourth, Dahua company should establish a mechanism for knowledge management. Movement, this is the problem faced by all enterprises, is now so many companies headaches. One hand, it allows businesses to have access to suitable talent the company needs, on the other hand can also be part of the company to lose valuable talent. Therefore, enterprises need to establish a mechanism, through this mechanism, companies can take advantage of the positive effect of personnel mobility, reducing its negative effects. This mechanism is knowledge management. Knowledge can be divided into two categories, one is tacit knowledge, it is a personal insight, experience and skills exist in the minds of individuals, for individuals; the other is explicit knowledge, is of a structured knowledge It exists in the file (including text and graphics), audio, video into, is shared by other people's knowledge, for the company. Knowledge management, is to create a knowledge-sharing within the enterprise environment and atmosphere (including the corresponding performance evaluation and reward system), to encourage employees actively to mind as tacit knowledge can became Pi explicit knowledge sharing across the company for explicit knowledge to promote the development of tacit knowledge. This will create a virtuous circle, each person's own tacit knowledge into explicit knowledge to share with you not only enrich the company's explicit knowledge, access to the company's rewards, but also can absorb the company's explicit knowledge nutrition, greatly enrich their own tacit knowledge, improve their "gold content." Thanks to constantly enrich and can be shared by all staff of explicit knowledge, the company has become a talent factory, to low-cost, large quantities needed for train company personnel, so as to effectively reduce the mobility of the company of the adverse effects.

How to create effective knowledge management mechanism is the important work of managing the content, therefore, Tsang, knowledge management should also be included in the assessment of the general manager to go into.

Fifth, the company should re-ranking of Dahua own quality management system. In the past, Overseas companies quality system certification as a quick sign. Therefore, the established quality management system is only on paper files, not the actual operation of business processes, more than conscious action of the staff, so the issue of quality again and again continue. Re-ranking of quality management system, to solve three problems. First, according to the actual situation of the company to develop practical operating procedures; Secondly, the establishment of new processes at the appropriate performance appraisal system and reward and punishment system; third, staff training, so that they truly understand the significance of the new processes to help implementation of new processes them the skills necessary. Overseas companies in changing the current status of quality system exists in name only, in terms of these three aspects are essential. No practical operating procedures, quality system will naturally not be useful; no assessment incentives, even the best processes will not be implemented; staff lack the necessary skills, good flow was also executed.鍙湁鍋氬ソ浜嗚繖涓夋柟闈㈢殑宸ヤ綔锛屽ぇ鍗庡叕鍙哥殑鏁翠綋渚涜揣璐ㄩ噺鎵嶆湁鍙兘鎻愰珮锛屽鎴风殑鎶辨?鎵嶆湁鍙兘闄嶄綆銆?br />
灞呭畨鎬濆嵄

鎴戜滑浜虹被鏈変竴涓壒娈婄殑寮辩偣锛岃繖灏辨槸鎶婂湪鐗瑰畾鏃堕棿鍜岀壒瀹氱幆澧冧笅鐨勬垚鍔熺粡楠岀粷瀵瑰寲銆佷竴鑸寲銆傛墍浠ワ紝鍦ㄧ幆澧冨彉鍖栦箣鍚庯紝鎴戜滑浠嶆棫鎸夌収鑰佺殗鍘嗚浜嬨?涓汉鏄繖鏍凤紝浼佷笟涔熸槸杩欐牱銆傜幆澧冨彉鍖栫▼搴﹀皬銆佸彉鍖栭?搴︽极鐨勬儏鍐典笅锛屾垜浠殑杩欎釜寮辩偣姣旇緝闅句互浣撶幇鍑烘潵锛涗絾鍦ㄧ幆澧冩?鍓у彉鍖栫殑鎯呭喌涓嬶紝鎴戜滑灏辫涓烘浠樺嚭鎯ㄧ棝浠d环銆傚洜姝わ紝涓嶆柇鍦板瑙嗘垜浠繃鍘昏禆浠ユ垚鍔熺殑鎬濈淮鏂瑰紡鍜岃涓烘柟寮忥紝涓嶆柇鍦板瀹冧滑鍦ㄦ柊褰㈠娍涓嬬殑姝g‘鎬ф彁鍑鸿川鐤戯紝鍙互璁╂垜浠牴鎹幆澧冪殑鍙樺寲鍙婃棭鍦拌皟鏁磋嚜宸辩殑蹇冩?鍜岃繍浣滄ā寮忥紝浠庤?鍦ㄦ?鍓у彉鍖栫殑鐜涓珛浜庝笉璐ヤ箣鍦般?瀵逛簬鍏锋湁20澶氬勾鍘嗗彶鐨勫ぇ鍗庢槸濡傛锛屽浜庢瘡涓澶勫湪鍒涗笟闃舵鐨勪紒涓氫篃鏄姝ゃ?






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