CN103457632A - Vehicle frequency hopping communication system - Google Patents
Vehicle frequency hopping communication system Download PDFInfo
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- CN103457632A CN103457632A CN2013104057150A CN201310405715A CN103457632A CN 103457632 A CN103457632 A CN 103457632A CN 2013104057150 A CN2013104057150 A CN 2013104057150A CN 201310405715 A CN201310405715 A CN 201310405715A CN 103457632 A CN103457632 A CN 103457632A
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Abstract
The invention discloses a vehicle frequency hopping communication system. The vehicle frequency hopping communication system comprises a signal emitting device and a vehicle-mounted receiving device, wherein the signal emitting device comprises a high-frequency emitter and a microcontroller, and the vehicle-mounted receiving device comprises a signal receiving module and a signal processing module. The vehicle frequency hopping communication system is characterized in that the emitting frequency of a first radio frequency signal and the emitting frequency of a second radio frequency signal differ, and the difference is within the receiving frequency band width range of the vehicle-mounted receiving module. Because communications are carried out by a PEPS and a TPMS through the first radio frequency signal and the second radio frequency signal which have the different frequency points respectively, the same vehicle-mounted receiving module can be shared, and communication failure problems caused by same-frequency interference can also be avoided to a great extent. The vehicle frequency hopping communication system improves frequency spectrum utilization ratio, reduces the number of vehicle-mounted receiving devices, and improves communication success rate.
Description
Technical field
The present invention relates to PEPS (passive type enters without key and starts system without key) (simple PKE), TPMS(Tire Pressure Monitoring System, tire inflation pressure determining system) technical field.
Background technology
Frequency hopping (FH:Frequency hopping), be called for short frequency hopping, so-called frequency hopping, refer to pseudo-random code sequence and carry out frequency shift keying, making the continuous saltus step of carrier frequency and a kind of method of spread-spectrum, is a kind of technology that goes up both at home and abroad comparative maturity at present.Be mainly used in military communication, it is avoid interference effectively, performance communication usefulness.
Existing PEPS, TPMS have been widely used in various types of vehicles, and two cover systems are used 315MHz and two high-frequency emission frequencies of 434MHz jointly, and operating distance is as long as fifty meters to 100 meters.So there are the problem of co-channel interference in automobile remote-control technology (RKE:Remote Keyless Entry) and TPMS communication, the place intensive at vehicle is particularly evident.Same automobile that is equipped with PEPS and TPMS, when two systems are launched the signal of same frequency at one time, cause onboard reception device reception signal to be made mistakes thereby can cause each other to disturb, and then cause operation failure.This method needs a receiving equipment of extra increase, and, at the intensive place of vehicle, still can't effectively solve the problem of co-channel interference.
Summary of the invention
For solving conventional P EPS, problem that TPMS system communication antijamming capability is low, the object of the present invention is to provide a kind of vehicle frequency hopping communication system, both can share identical vehicle-mounted receiver module, and can take into account the high-frequency signal antijamming capability simultaneously, reduce vehicle-mounted receiver apparatus quantity.
Technical scheme of the present invention is achieved in the following ways: a kind of vehicle frequency hopping communication system, comprise vehicle-mounted receiver apparatus and sender unit, and sender unit comprises HF transmitter and microcontroller, described vehicle-mounted receiver apparatus comprises signal receiving module, signal processing module, described signal receiving module can receive the accessible radiofrequency signal of this device signal processing module simultaneously, but the first radiofrequency signal that signal processing module processing signals receiver module receives and the second radiofrequency signal, described microcontroller is used for controlling the first radiofrequency signal of the first HF transmitter transmission and the second radiofrequency signal that the second HF transmitter sends when receiving data sending request, it is characterized in that: the tranmitting frequency of described the first radiofrequency signal is different from the tranmitting frequency of the second radiofrequency signal, its difference is within the receive frequency bandwidth range of described vehicle-mounted receiver module.
The tranmitting frequency of described the first radiofrequency signal is identical with the tranmitting frequency of the second radiofrequency signal.
Described signal receiving module can receive simultaneously and process the first radiofrequency signal and the second radiofrequency signal.
Described microcontroller adopts NXP-PCF7952 or PCF7953.
Described HF transmitter adopts NXP-PCF7900.
Described vehicle-mounted receiver apparatus adopts NXP-NCK2983.
The present invention, signal receiving module can receive the accessible different radio frequency signal of this device signal processing module simultaneously, as long as in vehicle-mounted receiver module receive frequency bandwidth range, distribute PEPS, TPMS to use the first radiofrequency signal and second radiofrequency signal of different frequent points to carry out communication, both can share identical vehicle-mounted receiver module, the Communications failure problem that also can largely avoid co-channel interference to bring.The present invention one improves the availability of frequency spectrum, and the 2nd, reduce vehicle-mounted receiver apparatus quantity, improve the communication success rate.
The accompanying drawing explanation
Fig. 1 is known PEPS, TPMS communication schematic diagram.
Fig. 2 is structural representation of the present invention.
Fig. 3 is the flow chart of emitter of the present invention.
Embodiment
By Fig. 1, being known, is known PEPS, TPMS communication schematic diagram.Same automobile that is equipped with PEPS and TPMS, the frequency range of this two cover system is demarcated, if PEPS is used TPMS use 434MHz frequency range of 315MHz frequency range, otherwise PEPS is used TPMS use 315MHz frequency range of 434MHz frequency range, uses the unlike signal receiving equipment to receive signal.
By Fig. 2, being known, is structural representation of the present invention.A kind of vehicle frequency hopping communication system, comprise vehicle-mounted receiver apparatus and sender unit, and sender unit comprises HF transmitter and microcontroller; Described vehicle-mounted receiver apparatus comprises signal receiving module, signal processing module; Described signal receiving module signal receiving module can receive simultaneously and process the first radiofrequency signal and the second radiofrequency signal, but the first radiofrequency signal that signal processing module processing signals receiver module receives and the second radiofrequency signal, described microcontroller is used for controlling the first radiofrequency signal of the first HF transmitter transmission and the second radiofrequency signal that the second HF transmitter sends when receiving data sending request, and the tranmitting frequency of described the first radiofrequency signal is identical with the tranmitting frequency of the second radiofrequency signal.The tranmitting frequency of the first radiofrequency signal is different from the tranmitting frequency of the second radiofrequency signal, and its difference is within the receive frequency bandwidth range of described vehicle-mounted receiver module.Microcontroller adopts NXP-PCF7952 or PCF7953, and HF transmitter adopts NXP-PCF7900, and vehicle-mounted receiver apparatus adopts NXP-NCK2983.
By Fig. 3, being known, is the flow chart of emitter of the present invention.Microcontroller receives user data and sends request, and controls the first HF transmitter and sends the first radiofrequency signal, and the first radiofrequency signal is sent rear control the second HF transmitter and sends the second radiofrequency signal; The first radiofrequency signal is identical with the user profile that the second radiofrequency signal comprises, and frequency is not identical.
Claims (6)
1. a vehicle frequency hopping communication system, comprise sender unit and vehicle-mounted receiver apparatus, and sender unit comprises HF transmitter and microcontroller, described vehicle-mounted receiver apparatus comprises signal receiving module, signal processing module, described signal receiving module can receive the accessible radiofrequency signal of this device signal processing module simultaneously, but the first radiofrequency signal that signal processing module processing signals receiver module receives and the second radiofrequency signal, described microcontroller is used for controlling the first radiofrequency signal of the first HF transmitter transmission and the second radiofrequency signal that the second HF transmitter sends when receiving data sending request, it is characterized in that: the tranmitting frequency of described the first radiofrequency signal is different from the tranmitting frequency of the second radiofrequency signal, its difference is within the receive frequency bandwidth range of described vehicle-mounted receiver module.
2. a kind of vehicle frequency hopping communication system according to claim 1, it is characterized in that: the tranmitting frequency of described the first radiofrequency signal is identical with the tranmitting frequency of the second radiofrequency signal.
3. a kind of vehicle frequency hopping communication system according to claim 1, it is characterized in that: described signal receiving module can receive simultaneously and process the first radiofrequency signal and the second radiofrequency signal.
4. a kind of vehicle frequency hopping communication system according to claim 1, is characterized in that: described microcontroller employing NXP-PCF7952 or PCF7953.
5. the described HF transmitter of HF transmitter adopts NXP-PCF7900.
6. the described vehicle-mounted receiver apparatus of HF transmitter adopts NXP-NCK2983.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104057150A CN103457632A (en) | 2013-07-01 | 2013-09-09 | Vehicle frequency hopping communication system |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310270755 | 2013-07-01 | ||
| CN201310270755.9 | 2013-07-01 | ||
| CN2013104057150A CN103457632A (en) | 2013-07-01 | 2013-09-09 | Vehicle frequency hopping communication system |
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| CN103457632A true CN103457632A (en) | 2013-12-18 |
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| CN2013104057150A Pending CN103457632A (en) | 2013-07-01 | 2013-09-09 | Vehicle frequency hopping communication system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105656572A (en) * | 2016-01-04 | 2016-06-08 | 重庆长安汽车股份有限公司 | Anti-jamming performance test system and method for vehicular radio frequency device based on frequency hopping technology |
| CN107415604A (en) * | 2017-08-30 | 2017-12-01 | 联创汽车电子有限公司 | TPMS systems and its communication means |
| CN109584406A (en) * | 2017-09-28 | 2019-04-05 | 比亚迪股份有限公司 | The communication control method of vehicle and car key, device and vehicle |
| CN110474650A (en) * | 2019-07-30 | 2019-11-19 | 铁将军汽车电子股份有限公司 | Signal transmission system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006205838A (en) * | 2005-01-26 | 2006-08-10 | Auto Network Gijutsu Kenkyusho:Kk | On-vehicle receiver |
| CN101141148A (en) * | 2006-09-06 | 2008-03-12 | 株式会社电装 | Vehicle control system |
| CN102050064A (en) * | 2009-11-09 | 2011-05-11 | 联创汽车电子有限公司 | Vehicle radio communication system and method based on frequency hopping communication |
| CN102594539A (en) * | 2011-01-04 | 2012-07-18 | 上海通用汽车有限公司 | Remote-control keyless entry system for vehicle |
| CN203827339U (en) * | 2013-07-01 | 2014-09-10 | 江苏安智欣电子科技有限公司 | Vehicle frequency hopping communication system |
-
2013
- 2013-09-09 CN CN2013104057150A patent/CN103457632A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006205838A (en) * | 2005-01-26 | 2006-08-10 | Auto Network Gijutsu Kenkyusho:Kk | On-vehicle receiver |
| CN101141148A (en) * | 2006-09-06 | 2008-03-12 | 株式会社电装 | Vehicle control system |
| CN102050064A (en) * | 2009-11-09 | 2011-05-11 | 联创汽车电子有限公司 | Vehicle radio communication system and method based on frequency hopping communication |
| CN102594539A (en) * | 2011-01-04 | 2012-07-18 | 上海通用汽车有限公司 | Remote-control keyless entry system for vehicle |
| CN203827339U (en) * | 2013-07-01 | 2014-09-10 | 江苏安智欣电子科技有限公司 | Vehicle frequency hopping communication system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105656572A (en) * | 2016-01-04 | 2016-06-08 | 重庆长安汽车股份有限公司 | Anti-jamming performance test system and method for vehicular radio frequency device based on frequency hopping technology |
| CN107415604A (en) * | 2017-08-30 | 2017-12-01 | 联创汽车电子有限公司 | TPMS systems and its communication means |
| CN109584406A (en) * | 2017-09-28 | 2019-04-05 | 比亚迪股份有限公司 | The communication control method of vehicle and car key, device and vehicle |
| CN110474650A (en) * | 2019-07-30 | 2019-11-19 | 铁将军汽车电子股份有限公司 | Signal transmission system and method |
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Application publication date: 20131218 |