CN103489332A - Parking place search network in smart community - Google Patents

Abstract

The invention relates to a wireless positioning-based parking place search network which is used for searching and positioning vacant parking places in a smart community. A system is uniformly provided with a receiver network in the community to form a plurality of search areas, a vehicle is equipped with a positioning device, a receiver identifies a wireless signal of the positioning device in a movement process to confirm the position of the positioning device, after the vehicle is parked, the system plus one in the count for the parking search area, and after the vehicle is re-started and leaves the parking search area, the system deducts one in the count, thus the statistical number is increased or decreased. The system can realize the search of the vacant parking places by the change of the statistical numbers N of all the search areas so as to realize the parking place search function. The wireless positioning-based parking place search network disclosed by the invention is the parking place search network with a brand new concept, is particularly suitable for parking management and parking place search in the smart community, and can enable residents to very conveniently inquire the parking places in the community and rapidly find the vacant parking places.

Description

Parking space search network in smart communities

(1) Technical field

The invention is a parking space search network based on wireless positioning, which is used for searching and positioning vacant parking spaces in smart communities. The system sets up a receiver network in the community, and the locator regularly sends out weak-power wireless signals. The receiver confirms the position of the locator after receiving the wireless signal, and the location information is sent to the server, and the software counts the location in a certain search area It is a typical application technology of the Internet of Things to determine the number of parking devices.

(2) Background technology

Wireless positioning technology has two technical modes: GPS positioning and wireless network positioning, each of which has its own advantages and disadvantages.

GPS positioning achieves positioning by receiving multiple satellite signals in space orbit. The positioning accuracy is very high. The system is open and easy to use. GPS positioning cannot be linked with the community map. It is necessary to add a map data interface to integrate the positioning information into the digital map, which greatly increases the difficulty of programming and is costly. It is not a reasonable solution.

Wireless network positioning is realized by tracking the base station to the network locator, which is the same as the principle of mobile phone base station positioning. A network of receivers is deployed in the community. The locator is a signal source that regularly sends out weak-power wireless signals. When it moves to the service range of a certain receiver, the receiver senses the wireless signal and sends confirmation data to the system. The system consists of This confirms the position of the locator. The cost of this solution is reasonable, the technology is simple, but the positioning accuracy is poor.

Smart communities have high requirements for intelligent management. The community is generally in short supply of land, and the lack of parking spaces is a major problem. They all use the "first come, first occupied" mode to use parking spaces. Residents urgently need to know the occupancy of parking spaces in advance and update parking space information in real time. Simple positioning only knows where the car is, and cannot solve the problem of vacant location search. The gate entrance can count the number of vehicles entering, but cannot confirm the parking distribution. The distribution of camera systems in the area is limited, and it is difficult to determine how many free parking spaces are available through video photos. Residents lack effective means to obtain parking space information, which cannot meet the real-time and effective needs of intelligent management.

Noticing the above problems, the present invention proposes a parking space search network based on wireless positioning. The receiver network is evenly set up in the community to form multiple search areas. Vehicles are equipped with locators. After the positioning is successful, the number of vehicles parked in a certain search area is counted. , compared with the preset standard data, the parking situation in the search area is judged by the positive and negative difference, so as to realize the real-time and efficient parking space search function.

(3) Contents of the invention

The parking quantity of a community has a maximum value, even if the vehicle exceeding the maximum value enters the community, it can only be parked anywhere. This maximum value is the statistical basis of the present invention. Vehicles entering the area are divided into two types: permanent type and temporary type. Resident vehicles are permanent type and visitor vehicles are temporary type. The present invention needs to distinguish these two types of vehicles.

The present invention will at first realize vehicle positioning, let the system know where the car is parked. Receivers are set up in the community, and each receiver forms a search area. They are evenly distributed to ensure coverage of driving roads and parking spaces. Multiple receivers form a network, all of which communicate with the server. The receiver and the server have two networking methods: wireless or wired. The networking method is determined according to reliability and construction difficulty. The system configures a unique ID number for each locator, and sets the locator in one number range as permanent parking, and the locator in the other number range as temporary parking, so as to realize vehicle differentiation.

When a vehicle enters the community, the resident holds a permanent locator, and the visitor holds a temporary locator. The invention adopts a weak power positioning signal source, and the button battery can meet the power supply demand, and the effective distance is set to 5-100m, which fully utilizes the characteristics of short distance and low power consumption, and achieves high cost performance while maintaining appropriate accuracy and ease of use. As the car moves, it traverses multiple search areas one by one. The locator sends out a weak-power wireless signal at regular intervals. After the receiver receives the wireless signal, it sends the positioning information to the server. After the system confirms the locator, it confirms the vehicle position. The vehicle will eventually stop in a search zone, and that last search zone is where the vehicle is parked. After the car stops, the system counts a positive number for the parking search area. Similarly, after the vehicle leaves the parking search area, the system counts a negative number once, and the statistical number N is increased or decreased accordingly. The larger N is, the more vehicles are in the parking search area, which provides a basis for parking space search.

The parking spaces in the area are fixed, which means that the amount of parking in each search area is also limited. The system administrator pre-sets the limit of the number of vehicles in each search area in the server software according to the actual situation in the area. These values may be inaccurate. The system has a limit value update function, which can determine the reasonable number of parking in a certain search area according to the change of the daily statistical number N during operation. In a search area with full load parking, the limit value of the number of vehicles will tend to be constant, and the system can determine the limit value of the number of vehicles in each search area after running for a period of time.

The system first confirms the statistical number N of each search area, and the statistical number N=permanent parking number+temporary parking number. If the statistical number N of a certain search area is less than the limit value of the number of vehicles, it means that there are vacant parking spaces in this search area. If the statistical number N is greater than or equal to the vehicle number limit, but contains temporary parking numbers, it means that the search area is temporarily unavailable. These results are displayed on the server's software interface. The invention allows authorized users to access the server, call the parking space data, and send the data to the user's hand-held terminal through GPRS/3G/4G or wired broadband, thereby realizing the search for vacant parking spaces.

As a result, the smart community has built a real-time and reliable parking space search network. This system can determine where there are vacant parking spaces, and users can call these data at any time. The system can also regularly send parking space information to authorized users to facilitate users to find parking locations, realize low-cost vehicle management, and enrich the experience of using smart communities.

(4) Description of drawings

Below in conjunction with accompanying drawing, the present invention is described, and Fig. 1 is the positioning schematic diagram of the present invention, and Fig. 2 is the working principle diagram of the present invention, and Fig. 3 is the embodiment of the present invention in outdoor field.

Figure 1 illustrates how a wireless location device works. A plurality of receivers 1 form a network, and they communicate with a server 4 through a data network 3, and the data network 3 has two modes: wireless and wired. The locator 2 is a portable communication module, which is carried by the car. The locator 2 will regularly send out a weak-power wireless signal. After receiving the wireless signal, the receiver 1 will transmit the positioning information to the server 4 in real time, and the server 4 can Determine the position of the locator 2. Authorized users can use the handheld terminal 5 to access the server 4 and call relevant data.

Figure 2 illustrates how the system realizes the functions of vehicle number statistics and parking space judgment. Receiver 1 is designed with a suitable communication radius, and the radius is set in the interval of 5-100m. Receiver 1 does not respond to wireless signals outside the range. Therefore, multiple search areas 6 are formed in the area, and they are evenly distributed to ensure Driveways and parking spaces in the area are covered. Each locator 2 is equipped with a unique ID number. Set the locator in one number range as permanent parking, and the locator in the other number range as temporary parking. Different cars carry locators in specific number ranges, which is convenient for the system Determine the parking state. The locator 2 is placed on the car. When the car is moving, it will switch from one search area to another. The receiver 1 recognizes the wireless signal of the locator 2 to confirm the position of the locator. The search areas passed are not counted. , after the car stops, the system counts a positive number for the parking search area once, and when the car starts to leave the parking search area and is recognized by another search area, the system counts a negative number for the parking search area once, and the statistical number N increases or decreases accordingly . The server software pre-sets the limit value of the number of vehicles in each search area. When the statistical number N of a certain search area 6 is greater than or equal to the limit value of the number of vehicles, the system judges that there is no vacancy; when the statistical number N is less than the limit value of the number of vehicles, the system That is, it is judged that there is a vacancy. The system has the function of updating the limit value of the number of vehicles, and can determine the reasonable number of parking in a certain search area according to the change of the daily statistical number N during operation.

Fig. 2 also is the embodiment of the present invention in the garage. The number of search areas 6 is determined according to the positioning accuracy, and can be more or less. The more the number of search areas, the higher the positioning accuracy. In this embodiment, lanes and parking spaces are covered by fourteen search areas 6, and the communication radius of each search area is set to 8m, so the positioning accuracy is relatively high. When the car enters the garage, it carries the locator 2, and the search area 6 tracks the whereabouts of the car. The search area passed is not counted. After the car stops, the system counts the parking search area once. The search area counts negatively once. Thus, the system realizes the retrieval of vacant parking spaces through the change of the statistical number N of each search area, and allows the handheld terminal to access the server 4, call the parking space data, and realize the parking space search function. This search system is very valuable to users, who can find out the parking situation in the area at any time and find parking spaces quickly.

Fig. 3 is an embodiment of the present invention in villa area. In this embodiment, seven search areas 6 are used to cover the driveway and the parking space. The communication radius of each search area is set to 20m, the outdoor field of view is wide, and the positioning accuracy can be appropriately reduced. When the car enters the villa area, it carries the locator 2. After the car stops, the system counts up once for the parking search area. When the car starts to leave a certain search area again, the system counts a negative number for the parking search area once. Authorize users to access the server, call the parking space data, and realize the parking space search function.

(5) Beneficial effects

The present invention is a new concept of parking space search network, which is especially suitable for parking management and parking space search in smart communities. It realizes the combination of low-cost sensors and automatic data updates, which greatly facilitates residents to inquire about parking spaces in the community and quickly find vacant parking spaces. The invention has moderate network scale, low cost and high degree of automation, allows hand-held terminals to transfer data, and is an ideal parking space search system.

Claims (9)

1. the parking stall search network based on wireless location, the search of vacant parking stall and location for the wisdom community, it is characterized in that in community evenly arranging the receiver network, form a plurality of fields of search, certain field of search of system statistics park the car number, do contrast with preset normal data, judge the parking situation of the field of search by positive negative spread.

2. parking stall according to claim 1 search network, is characterized in that a plurality of receivers (1) network consisting, and they are by data network (3) and server (4) communication, and data network (3) has wireless and wired two kinds of modes.

3. parking stall according to claim 1 search network, it is characterized in that steady arm (2) is the portable communications module, by automobile-mounted, carried, steady arm (2) can regularly outwards send the wireless signal of weak power, after receiver (1) receives wireless signal, by the locating information real-time Transmission, to server (4), server (4) can be determined the position of this steady arm (2).

4. parking stall according to claim 1 search network, it is characterized in that receiver (1) designs suitable communication radius, radius is set in the interval of 5～100m, receiver (1) is not made response to extraneous wireless signal, thus, form a plurality of fields of search (6) in zone, they are uniformly distributed, and guarantee the covering to Nei track, district and parking stall.

5. parking stall according to claim 1 search network, it is characterized in that each steady arm (2) configures unique id number, the steady arm of setting a number interval is that permanent type stops, the steady arm in another number interval is that interim type stops, different automobiles carries the steady arm in particular number interval, is convenient to system judgement dead ship condition.

6. parking stall according to claim 1 search network, it is characterized in that steady arm (2) is placed on automobile, automobile is in moving process, can be switched to another field of search from a field of search, the wireless signal of receiver (1) identification steady arm (2), confirm the position of this steady arm, does not count the field of search of passing through, after automobile stops, system is that positive number is counted once in the parking field of search, and automobile reruns and leaves the parking field of search, after another field of search identification, system is that negative is counted once in the parking field of search, and statistical number N increases and decreases thus.

7. parking stall according to claim 1 search network, it is characterized in that the car that server software presets each field of search counts limit value, when being more than or equal to car, the statistical number N of certain field of search (6) counts limit value, system judges without room, count limit value when statistical number N is less than car, system judges and has vacant position.

8. parking stall according to claim 1 search network, is characterized in that system possesses car and counts limit value and upgrade function, can be in operation according to the variation of the statistical number N of every day, determines the reasonable stop of several of certain field of search.

9. parking stall according to claim 1 search network, is characterized in that system realizes the retrieval of vacant parking stall by the variation of the statistical number N of each field of search, and allow handheld terminal access services device (4), calls the parking stall data, realizes the parking stall function of search.

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