CN101226693B - System and method for limiting vehicle speed - Google Patents
System and method for limiting vehicle speed Download PDFInfo
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- CN101226693B CN101226693B CN2007100627357A CN200710062735A CN101226693B CN 101226693 B CN101226693 B CN 101226693B CN 2007100627357 A CN2007100627357 A CN 2007100627357A CN 200710062735 A CN200710062735 A CN 200710062735A CN 101226693 B CN101226693 B CN 101226693B
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Abstract
The invention relates to a vehicle speed limit system, comprising a traffic speed limit indicator and a vehicle automatic over-speed governor, wherein the traffic speed limit indicator is used to transmit speed limit information and the vehicle automatic over-speed governor is used to limit the speed of vehicles. The invention also relates to a vehicle speed limit system, comprising a central processor and a vehicle automatic over-speed governor, wherein the central processor is used to deliver speed limit information, and the vehicle automatic over-speed governor which is connected with the central processor and is loaded on vehicles is used to limit the speed of vehicles. The invention further relates to a vehicle speed limit method, an information conversion module of the traffic speed limit indicator converses the speed limit information into short distance wireless signal sent by a short distance wireless signal transmitting module, the wireless signal processing module of the vehicle automatic over-speed governor receives the short distance wireless signal and analyzes the short distance wireless signal as speed limit information, and the speed limit information is prompted by a prompting module. The invention also relates to a vehicle speed limit method, a positioning module is used to measure vehicle position information, transmits the information to a central processor, and transfers the speed limit information in database, and the speed limit information is prompted by the prompting module, thereby realizing automatic speed limit control of vehicles.
Description
Technical field
The present invention relates to a kind of limiting vehicle speed system and method, especially a kind of system and method for automotive vehicle speed limit belongs to wireless communication field.
Background technology
No matter be road or the intercity road in the city, all limiting vehicle speed can be arranged under the normal condition, but the speed limit in each highway section be different; The driver can not remember the speed limit speed in all highway sections, so existing traffic speed-limiting messages on the way all is to present to the driver through direction board; When the driver is absent minded; Be easy to miss this indication earlier, thereby cause overspeed violation, even cause serious traffic hazard.
And if display board broken, perhaps be difficult in sight, and in same highway section; According to different road conditions (for example dense fog, sleety weather or road construction etc.), speed limit also can change, in these cases; Display board can not change, and problem still.
A lot of vehicles all are equipped with the limiting vehicle speed device; Existing limiting vehicle speed device all is that the sensor from vehicle self region of interest obtains the present running status of vehicle; Compare with the parameter that is preset in the storer then, again through controlling the engine oil pipeline or realizing the vehicle automatic speed-limiting for the mode of information such as driver's sound, light, figure.All need in storer, to write in advance the parameter of going, not only increased the complicacy of operation, and when vehicle ' arrives strange highway section, be difficult to preestablish.
Therefore do not have a kind of limiting vehicle speed system and method for limiting speed at present, the vehicle that can make carries out speed limit according to the speed-limiting messages in current highway section.
Summary of the invention
The objective of the invention is defective, a kind of limiting vehicle speed system and method is provided, thereby vehicle is carried out speed limit to prior art.
Be to realize above-mentioned purpose, the invention provides a kind of limiting vehicle speed system, comprising:
Traffic speed limit indicator is used to send speed-limiting messages, and this traffic speed limit indicator comprises: the information translation module is used for converting speed-limiting messages to the short-distance wireless signal; The short-distance wireless signal emission module is connected with said information translation module, is used for the speed-limiting messages that converts the short-distance wireless signal to is sent with specific frequency;
Vehicle automatic speed-limiting device is loaded on the vehicle, is used for limiting vehicle speed, and this vehicle automatic speed-limiting device comprises: the wireless signal processing module, be connected with said short-distance wireless signal emission module, and being used for receiving and resolving the short-distance wireless signal is speed-limiting messages; Reminding module is connected with said wireless signal processing module, is used to receive speed-limiting messages, and points out after with the present velocity ratio of vehicle.
Wherein said wireless signal processing module comprises: the short-distance wireless signal receives submodule, is connected with said short-distance wireless signal emission module, is used to receive above-mentioned short-distance wireless signal; The signal Processing submodule receives submodule with said short-distance wireless signal and is connected with reminding module, and being used for above-mentioned short-distance wireless signal resolution is speed-limiting messages.Said vehicle automatic speed-limiting device also comprises: vehicle control module, be connected with said signal Processing submodule, and be used for automobile being carried out Control for Speed Limitation according to the speed-limiting messages that the signal Processing submodule sends.
Also comprise center processor, be used to issue speed-limiting messages, this center processor comprises: database is used to store the speed-limiting messages under each highway section and the road conditions; Processing module is connected with said database, is used for issuing speed-limiting messages according to highway section and road conditions; Communication module is connected with said processing module, is used to send speed-limiting messages; Said traffic speed limit indicator also comprises information receiving module, is connected with communication module with said information translation module, is used for the speed-limiting messages that the received communication module is sent.
Wherein said traffic speed limit display also comprises display module, is connected with said information receiving module, is used to show speed-limiting messages.Said vehicle automatic speed-limiting device also has locating module, is connected with said signal Processing submodule, is used for the positional information of measuring vehicle; Said wireless signal processing module also comprises long distance wireless signal transmitting-receiving submodule, is connected with the communication module of said signal Processing submodule and center processor, is used for the positional information of vehicle is sent to communication module
The present invention also provides a kind of limiting vehicle speed system, comprising:
Center processor is used to issue speed-limiting messages, comprising: database is used to store the speed-limiting messages under each highway section and the road conditions; Processing module is connected with said database, is used for issuing speed-limiting messages according to locating module measured vehicle positional information and highway section and road conditions; Communication module is connected with said processing module, is used to send speed-limiting messages;
Said limiting vehicle speed system also comprises: vehicle automatic speed-limiting device, be loaded on the vehicle, and be used for limiting vehicle speed, comprising: the wireless signal processing module, be connected through network with said communication module, be used to receive speed-limiting messages; Locating module is connected with said wireless signal processing module, is used for the positional information of measuring vehicle; Reminding module is connected with said wireless signal processing module, is used to receive speed-limiting messages, and compares with present speed and to point out.
Said wireless signal processing module comprises: long distance wireless signal transmitting-receiving submodule, be connected through network with said communication module, and be used to receive above-mentioned speed-limiting messages; The signal Processing submodule is connected with reminding module with said long distance wireless signal receiver module, locating module.Said vehicle automatic speed-limiting device also comprises: vehicle control module, be connected with said signal Processing submodule, and be used for automobile being carried out Control for Speed Limitation according to the speed-limiting messages that the signal Processing submodule sends.
The present invention also provides a kind of limiting vehicle speed method, may further comprise the steps:
Limiting vehicle speed method according to claim 10, wherein said step 3 is specially:
Said step 4 also comprises: the signal Processing submodule of said wireless signal processing module, above-mentioned speed-limiting messages is sent to the vehicle control module of vehicle automatic speed-limiting device, and this vehicle control module is carried out Control for Speed Limitation according to above-mentioned speed-limiting messages to automobile.
Further comprising the steps of before the said step 1:
Said step 13 also comprises: said information receiving module sends to display module with above-mentioned speed-limiting messages and shows.
The present invention provides a kind of limiting vehicle speed method again, may further comprise the steps:
Step 5, this wireless signal processing module is pointed out the reminding module that above-mentioned speed-limiting messages sends to vehicle automatic speed-limiting device, and reminding module receives speed-limiting messages, and compares with present speed and to point out.
Said step 4 is specially:
The speed-limiting messages that step 41, this processing module are called this vehicle location in the database sends to the long distance wireless signal transmitting-receiving submodule in the wireless signal processing module of vehicle automatic speed-limiting device through communication module;
Step 42, this long distance wireless signal transmitting-receiving submodule sends to the signal Processing submodule in this wireless signal processing module with above-mentioned speed-limiting messages.
Said step 5 is specially: this signal Processing submodule sends to reminding module with above-mentioned speed-limiting messages and points out.Said step 4 also comprises: the signal Processing submodule of said wireless signal processing module, above-mentioned speed-limiting messages is sent to the vehicle control module of vehicle automatic speed-limiting device, and this vehicle control module is carried out Control for Speed Limitation according to above-mentioned speed-limiting messages to automobile.
Therefore, limiting vehicle speed system and method for the present invention has been realized the automatic speed-limiting control to vehicle.
Through accompanying drawing and embodiment, technical scheme of the present invention is done further detailed description below.
Description of drawings
Fig. 1 is the structural representation of first embodiment of limiting vehicle speed of the present invention system;
Fig. 2 is the structural representation of vehicle automatic speed-limiting device of the present invention;
Fig. 3 is the process flow diagram of first embodiment of limiting vehicle speed method of the present invention;
Fig. 4 is the structural representation of second embodiment of limiting vehicle speed of the present invention system;
Fig. 5 is the process flow diagram of second embodiment of limiting vehicle speed method of the present invention;
Fig. 6 is the structural representation of the 3rd embodiment of limiting vehicle speed of the present invention system;
Fig. 7 is the structural representation of the 4th embodiment of limiting vehicle speed of the present invention system;
Fig. 8 is another structural representation of vehicle automatic speed-limiting device of the present invention;
Fig. 9 is the process flow diagram of the 3rd embodiment of limiting vehicle speed method of the present invention.
Embodiment
As shown in Figure 1, the structural representation for first embodiment of limiting vehicle speed of the present invention system comprises traffic speed limit indicator 1, is used to send speed-limiting messages, is loaded in to be used for limiting vehicle speed vehicle automatic speed-limiting device 2 on the vehicle, is connected with traffic speed limit indicator 1.
As shown in Figure 1 again, traffic speed limit indicator 1 comprises information translation module 11, is used for converting speed-limiting messages to the short-distance wireless signal; Short-distance wireless signal emission module 12 is connected with information translation module 11, is used for the speed-limiting messages that converts the short-distance wireless signal to is sent with specific frequency.And vehicle automatic speed-limiting device 2 comprises that wireless signal processing module 20 is connected with short-distance wireless signal emission module 12, and being used for receiving and resolving the short-distance wireless signal is speed-limiting messages; Reminding module 21 is connected with wireless signal processing module 20, is used to receive speed-limiting messages, and points out after with the present velocity ratio of vehicle.
And for example shown in Figure 1, wireless signal processing module 20 comprises: the short-distance wireless signal receives submodule 200, is connected with short-distance wireless signal emission module 12, is used to receive above-mentioned short-distance wireless signal; Signal Processing submodule 200 receives submodule 201 with the short-distance wireless signal and is connected with reminding module 21, and being used for above-mentioned short-distance wireless signal resolution is speed-limiting messages.
As shown in Figure 2; Be the synoptic diagram of vehicle automatic speed-limiting device of the present invention, this vehicle automatic speed-limiting device 2 also comprises vehicle control module 22, is connected with signal Processing submodule 201; Be used for automobile being carried out Control for Speed Limitation according to the speed-limiting messages that the signal Processing submodule sends; For example to the engine of vehicle, oil supply pipe and brake are controlled, thus the speed limit of control vehicle.
As shown in Figure 3, be the first embodiment process flow diagram of limiting vehicle speed method of the present invention, detailed step is following:
If vehicle automatic speed-limiting device 2 also comprises vehicle control module; The signal Processing submodule of wireless signal processing module then; Above-mentioned speed-limiting messages is sent to the vehicle control module of vehicle automatic speed-limiting device, and this vehicle control module is carried out Control for Speed Limitation according to above-mentioned speed-limiting messages to automobile.
As shown in Figure 4; Structural representation for second embodiment of limiting vehicle speed of the present invention system; On the basis of above-mentioned limiting vehicle speed system embodiment, comprise center processor 3 again, be used to issue speed-limiting messages; This center processor comprises database 31, is used to store the speed-limiting messages under each highway section and the road conditions; Processing module 32 is connected with database 31, is used for issuing speed-limiting messages according to highway section and road conditions; Communication module 33 is connected with processing module 32, is used to send speed-limiting messages.Traffic speed limit indicator 1 also comprises information receiving module 10, is connected with communication module 33 with information translation module 11, is used for the speed-limiting messages that received communication module 33 is sent.Traffic speed limit display 1 also comprises display module 13, is connected with information receiving module 10, is used to show speed-limiting messages.
As shown in Figure 5, be the process flow diagram of second embodiment of limiting vehicle speed method of the present invention, promptly send speed-limiting messages to traffic speed limit indicator by center processor, therefore only before the step 101 of the embodiment of a last limiting vehicle speed method, increase following step:
And information receiving module can send to display module with above-mentioned speed-limiting messages and show.
As shown in Figure 6; Structural representation for the 3rd embodiment of limiting vehicle speed of the present invention system; Than having increased locating module 23 in the vehicle automatic speed-limiting device 2 of second embodiment, be connected in the present embodiment, be used for the positional information of measuring vehicle with signal Processing submodule 200; Wireless signal processing module 20 also comprises long distance wireless signal transmitting-receiving submodule 202, is connected with signal Processing submodule 200, and is connected with the communication module 33 of center processor 3 through network 4, is used for the positional information of vehicle is sent to communication module 33.
As shown in Figure 7; Structural representation for the 4th embodiment of limiting vehicle speed of the present invention system; Comprise the center processor 3 that is used to issue speed-limiting messages, be loaded into the vehicle automatic speed-limiting device 2 that is used for limiting vehicle speed on the vehicle, be connected through network 4 with center processor 3.
As shown in Figure 7 again, center processor 3 comprises database 31, is used to store the speed-limiting messages under each highway section and the road conditions; Processing module 32 is connected with database 31, is used for issuing speed-limiting messages according to highway section and road conditions; Communication module 33 is connected with processing module 32, is used to send speed-limiting messages.Vehicle automatic speed-limiting device 2 comprises wireless signal processing module 20, is connected through network 4 with communication module 33, is used to receive speed-limiting messages; Locating module 23 is connected with said wireless signal processing module, is used for the positional information of measuring vehicle; Reminding module 21 is connected with wireless signal processing module 20, is used to receive speed-limiting messages, and compares with present speed and to point out.
And for example shown in Figure 7, wireless signal processing module 20 comprises long distance wireless signal transmitting-receiving submodule 202, is connected through network 4 with communication module 33, is used to receive above-mentioned speed-limiting messages; Signal Processing submodule 200 is connected with long distance wireless signal receiver module 202, locating module 23 and reminding module 21.
As shown in Figure 8; Another synoptic diagram for vehicle automatic speed-limiting device of the present invention; This vehicle automatic speed-limiting device 2 also comprises vehicle control module 22, is connected with signal Processing submodule 200, is used for according to the speed-limiting messages that the signal Processing submodule sends automobile being carried out Control for Speed Limitation.
As shown in Figure 9, be the process flow diagram of the embodiment three of limiting vehicle speed method of the present invention, detailed step is following:
In addition, the signal Processing submodule of wireless signal processing module sends to the vehicle control module of vehicle automatic speed-limiting device with above-mentioned speed-limiting messages, and this vehicle control module is carried out Control for Speed Limitation according to above-mentioned speed-limiting messages to automobile;
Therefore the center processor among the present invention is responsible for collecting various traffic informations, and each highway section speed-limiting messages is sent to the traffic speed limit indicator that is built up on the highway section through wired or wireless mode.This center processor also has the function mutual with vehicle, can obtain the current location of vehicle and the information of travel direction, and sends the speed-limiting messages in highway section, place to vehicle according to this information.
Traffic speed limit indicator is the device that is built up on the traffic highway section, and this device can obtain speed-limiting messages in real time through wired or wireless mode from center processor, also fixing speed limit can be set in advance.
1, if from center processor, obtains information in real time; Then this device is received after the speed-limiting messages; Not only can speed-limiting messages be shown through display module, thereby present to the driver, also can possess information translation module and short-distance wireless signal emission module simultaneously; Convert speed-limiting messages to short-distance wireless information (like RFID, Bluetooth technology), and outwards launch with specific frequency.The road speed limit of different directions is different on the two-way road, can adopt the antenna with directional transmissions function to carry out the emission of wireless signal.
If 2 are provided with fixing speed limit in advance, then this device can show through fixing icon direction board or display module, thereby if present to this, converts speed-limiting messages to the short-distance wireless signal simultaneously, and outwards launches with CF.
Vehicle automatic speed-limiting device is mounted in the device on the vehicle, divides two kinds of situation:
1, if do not have locating module on the vehicle, this device can receive the wireless signal that the traffic speed limit indicating device on the road sends, and from wireless signal, obtains speed-limiting messages:
1) if vehicle has vehicle control module; Vehicle automatic speed-limiting device will be notified the control assembly on the vehicle speed-limiting messages so; By the engine of control assembly to vehicle; Miscellaneous parts such as brake and oil supply pipe are controlled, and utilize reminding module to give the prompting of user speech or image, thereby reach the purpose of speed limit;
2) if vehicle does not have vehicle control module, vehicle automatic speed-limiting device will send the speed-limiting messages and the current speed of a motor vehicle of vehicle to reminding module so, is compared by reminding module.If exceed the speed limit, then can alarm to the user; If hypervelocity then can not point out the user to keep the speed of a motor vehicle (alarm and prompting all provide with the form of voice or image).
2, for vehicle with locating module; Can obtain current position of vehicle and travel direction information from locating module; And relevant information sent to center processor; Center processor then can be according to this information, and the speed-limiting messages that directly vehicle is belonged to the highway section at present sends to vehicle automatic speed-limiting device.Like this, on the road that traffic speed limit indicating device is not set, also can realize the automatic speed-limiting of vehicle.After automatic speed limit device obtains speed-limiting messages:
1) if vehicle has vehicle control module; Vehicle automatic speed-limiting device will be notified the vehicle control module on the vehicle speed-limiting messages so; By vehicle control module parts such as vehicle motor, brake and oil supply pipe are controlled; And give the prompting of user speech or image, thereby reach the purpose of speed limit;
2) if vehicle does not have vehicle control module, vehicle automatic speed-limiting device will send the speed-limiting messages and the current speed of a motor vehicle of vehicle to reminding module so, is compared by reminding module.If exceed the speed limit, then can alarm to the user; If hypervelocity then can not point out the user to keep the speed of a motor vehicle (alarm and prompting all provide with the form of voice or image).
Short-distance wireless signal in the wireless signal processing module in the vehicle automatic speed-limiting device receives submodule and receives the short-distance wireless signal (for example RDIF, bluetooth) from center processor; And long distance wireless signal transmitting-receiving submodule is equipped with locating module when vehicle; Then long distance wireless signal transmitting-receiving submodule sends present position and the travel direction of vehicle to center processor, and the speed-limiting messages (through modes such as GPRS or notes) of receiving center processor transmission; The signal Processing submodule: the signal that the short-distance wireless signal is received submodule and the reception of long distance wireless signal transmitting-receiving submodule is resolved and is handled; Obtain vehicle location, direction and speed from locating module, pass to long distance wireless signal transmitting-receiving submodule after changing and handling; To vehicle control module or reminding module speed limit information is provided;
Reminding module receives speed-limiting messages and the current vehicle speed information from wireless signal processor, compares, if exceed the speed limit, then can alarm to the user; If hypervelocity then can not point out the user to keep the speed of a motor vehicle.Alarm and prompting all provide with the form of voice or image.
Vehicle control module in the vehicle automatic speed-limiting device is the automatic control component of locomotive, can be from according to speed-limiting messages, and (like engine, oil supply pipe or brake) controlled automatically to the vehicle associated components then, to reach the purpose of automatic speed-limiting.
Locating module is mounted in the position acquisition module (like AGPS or GPS module) on the locomotive, and the current position of vehicle, speed and direction can be provided.
Information receiving module in the traffic speed limit indicating device can obtain speed-limiting messages (if speed-limiting messages is the fixed value that is provided with in advance, then not needing this module) from center processor through wired or wireless mode;
Display module can be presented to driver's (if speed-limiting messages does not then need this module through fixedly direction board indication) with the mode of literal or figure with speed-limiting messages;
Information translation module: convert speed-limiting messages to short-distance wireless signal (like RFID, Bluetooth technology); The short-distance wireless signal emission module: the speed-limiting messages that will change is gone out with specific frequency emission.
Therefore in the limiting vehicle speed method and system of the present invention, the traffic speed limit indicator on the road can obtain real-time speed-limiting messages through wired or wireless mode.Traffic speed limit indicator not only can be presented to the driver through the mode of literal and figure with speed-limiting messages, but also has short-distance wireless emission function (like RFID, Bluetooth technology), can speed-limiting messages be sent through wireless mode.The road speed limit of different directions is different on the two-way road, can adopt the antenna with directional transmissions function to carry out the emission of wireless signal.When vehicle ' arrives this highway section, can receive the wireless signal that direction board sends, and this signal is handled, mutual with vehicle automatic speed-limiting device, the vehicle associated components is controlled, thereby realized automatic control the speed of a motor vehicle.
If have locating module (like the GPS module); Speed-limiting device on the vehicle can offer center processor with current location and travel direction so; Center processor can be current according to vehicle position and travel direction, speed-limiting messages is directly sent to vehicle automatic speed-limiting device.
It should be noted last that; Above embodiment is only unrestricted in order to technical scheme of the present invention to be described; Although the present invention is specified with reference to preferred embodiment; Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention, and do not break away from the spirit and the scope of technical scheme of the present invention.
Claims (11)
1. limiting vehicle speed system, comprising:
Traffic speed limit indicator is used to send speed-limiting messages, and this traffic speed limit indicator comprises:
The information translation module is used for converting speed-limiting messages to the short-distance wireless signal;
The short-distance wireless signal emission module is connected with said information translation module, is used for the speed-limiting messages that converts the short-distance wireless signal to is sent with specific frequency;
Vehicle automatic speed-limiting device is loaded on the vehicle, is used for limiting vehicle speed, and this vehicle automatic speed-limiting device comprises:
The wireless signal processing module is connected with said short-distance wireless signal emission module, and being used for receiving and resolving the short-distance wireless signal is speed-limiting messages;
Reminding module is connected with said wireless signal processing module, is used to receive speed-limiting messages, and points out after with the present velocity ratio of vehicle;
Said vehicle automatic speed-limiting device also comprises: vehicle control module and locating module, and wherein vehicle control module is used for according to said speed-limiting messages vehicle being carried out Control for Speed Limitation; Said locating module is used for the positional information of measuring vehicle;
Said limiting vehicle speed system also comprises: center processor is used for issuing speed-limiting messages according to the positional information of said locating module measured vehicle to traffic speed limit indicator.
2. limiting vehicle speed according to claim 1 system, wherein said wireless signal processing module comprises:
The short-distance wireless signal receives submodule, is connected with said short-distance wireless signal emission module, is used to receive above-mentioned short-distance wireless signal;
The signal Processing submodule receives submodule with said short-distance wireless signal and is connected with reminding module, and being used for above-mentioned short-distance wireless signal resolution is speed-limiting messages.
3. limiting vehicle speed according to claim 2 system, wherein said center processor comprises:
Database is used to store the speed-limiting messages under each highway section and the road conditions;
Processing module is connected with said database, is used for issuing speed-limiting messages according to highway section and road conditions;
Communication module is connected with said processing module, is used to send speed-limiting messages;
Said traffic speed limit indicator also comprises information receiving module, is connected with communication module with said information translation module, is used for the speed-limiting messages that the received communication module is sent.
4. limiting vehicle speed according to claim 3 system, wherein said traffic speed limit indicator also comprises display module, is connected with said information receiving module, is used to show speed-limiting messages.
5. limiting vehicle speed according to claim 3 system; Wherein said wireless signal processing module also comprises long distance wireless signal transmitting-receiving submodule; Be connected with the communication module of said signal Processing submodule and center processor, be used for the positional information of vehicle is sent to communication module.
6. limiting vehicle speed system, comprising:
Center processor is used to issue speed-limiting messages, and this center processor comprises:
Database is used to store the speed-limiting messages under each highway section and the road conditions;
Processing module is connected with said database, is used for issuing speed-limiting messages according to locating module measured vehicle positional information and highway section and road conditions;
Communication module is connected with said processing module, is used to send speed-limiting messages;
Said limiting vehicle speed system also comprises vehicle automatic speed-limiting device, is loaded on the vehicle, is used for limiting vehicle speed, and this vehicle automatic speed-limiting device comprises:
The wireless signal processing module is connected through network with said communication module, is used to receive speed-limiting messages;
Locating module is connected with said wireless signal processing module, is used for the positional information of measuring vehicle;
Reminding module is connected with said wireless signal processing module, is used to receive speed-limiting messages, and compares with present speed and to point out.
7. limiting vehicle speed according to claim 6 system, wherein said wireless signal processing module comprises:
Long distance wireless signal transmitting-receiving submodule is connected through network with said communication module, is used to receive above-mentioned speed-limiting messages;
The signal Processing submodule is connected with reminding module with said long distance wireless signal receiver module, locating module.
8. according to claim 6 or 7 described limiting vehicle speed systems; Wherein said vehicle automatic speed-limiting device also comprises: vehicle control module; Be connected with said signal Processing submodule, be used for automobile being carried out Control for Speed Limitation according to the speed-limiting messages that the signal Processing submodule sends.
9. limiting vehicle speed method, comprising following steps:
Step 1, the information translation module of traffic speed limit indicator is converted into the short-distance wireless signal with speed-limiting messages;
Step 2, the short-distance wireless signal emission module of traffic speed limit indicator is launched above-mentioned short-distance wireless signal;
Step 3, the wireless signal processing module of vehicle automatic speed-limiting device receives above-mentioned short-distance wireless signal, and resolves to speed-limiting messages; Said step 3 comprises:
Step 31, the short-distance wireless signal of said wireless signal processing module receives submodule, receives above-mentioned short-distance wireless signal;
Step 32, the signal Processing submodule of said wireless signal processing module is a speed-limiting messages with above-mentioned short-distance wireless signal resolution;
Step 4, the reminding module of vehicle automatic speed-limiting device velocity ratio that above-mentioned speed-limiting messages and vehicle is present are pointed out after; The signal Processing submodule of said wireless signal processing module sends to the vehicle control module of vehicle automatic speed-limiting device with above-mentioned speed-limiting messages, and this vehicle control module is carried out Control for Speed Limitation according to above-mentioned speed-limiting messages to automobile.
10. further comprising the steps of before the limiting vehicle speed method according to claim 9, wherein said step 1:
Step 11, the processing module of center processor is called the speed-limiting messages in the database;
Step 12, the communication module of center processor send to above-mentioned speed-limiting messages the information receiving module of traffic speed limit indicator;
Step 13, this information receiving module sends to the information translation module with above-mentioned speed-limiting messages.
11. limiting vehicle speed method according to claim 10, wherein said step 13 also comprises: said information receiving module sends to display module with above-mentioned speed-limiting messages and shows.
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| CN2007100627357A CN101226693B (en) | 2007-01-15 | 2007-01-15 | System and method for limiting vehicle speed |
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| CN2007100627357A CN101226693B (en) | 2007-01-15 | 2007-01-15 | System and method for limiting vehicle speed |
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