CN104401191A - Detection device and detection method for calibration of TPMS (tire pressure monitoring system) - Google Patents
Detection device and detection method for calibration of TPMS (tire pressure monitoring system) Download PDFInfo
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- CN104401191A CN104401191A CN201410706865.XA CN201410706865A CN104401191A CN 104401191 A CN104401191 A CN 104401191A CN 201410706865 A CN201410706865 A CN 201410706865A CN 104401191 A CN104401191 A CN 104401191A
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Abstract
The invention discloses a detection device for calibration of a TPMS (tire pressure monitoring system). The calibration and detection device is characterized by comprising an antenna received strength detection unit and an Rf receiving board receiving sensitivity detection unit, wherein the antenna received strength detection unit is used for fixing an antenna of a TPMS at an original position in an automobile and connecting the antenna with the signal input end of a spectrum analyzer; the Rf receiving board receiving sensitivity detection unit is used for connecting the antenna interface end of an Rf receiving board with a signal generator, and connecting the DATA end and GND end the Rf receiving board with a logic analyzer. The calibration and detection device is simplified in structure, and reliable to use, and can be used for accurately detecting whether the system calibration of the TPMS is correct or not, thereby improving the product qualities of automobile manufacturers.
Description
Technical field
The present invention relates to a kind of device detected for TPMS (Tire Pressure Monitoring System-system for monitoring pressure in tyre) system calibrating.
Background technology
The trend of current vehicle electronics is towards the future development of safety and traveling comfort, and the brought traffic accident of blowing out of automobile tyre low pressure and high temperature is increasing, increases TPMS (system for detecting tire pressure) and becomes to force GB with European Union in the U.S.! And in China, this technology is universal in most of vehicle.Before TPMS system is installed, needing to carry out demarcation to it can detect, and lacks a kind of complete function failure-free at present for detecting the device of TPMS system, can not meet domestic automobile vendor product inspection needs.
Summary of the invention
Technical matters to be solved by this invention is the TPMS system calibrating detecting device realizing a kind of easy to use, reliable operation, low cost of manufacture.
To achieve these goals, the technical solution used in the present invention is: TPMS system calibrating detecting device, is characterized in that: system comprises antenna receiving intensity detecting unit and RF dash receiver receiving sensitivity detecting unit;
Described antenna receiving intensity detecting unit: the antenna of TPMS system is fixed on the position that it was originally positioned at car, and antenna is connected with the signal input part of spectrometer;
Described RF dash receiver receiving sensitivity detecting unit: RF dash receiver antennal interface end and signal generator are linked together, is connected the DATA data terminal of RF dash receiver with logic analyser with GND end.
Described vehicle is fixed with angular transducer, and signal is delivered to PC by described angular transducer and spectrometer, logic analyser also by information conveyance to PC.
Substrate is fixed on outside automotive hub by fixed mechanism, drive wheel is fixed with outside substrate, described drive wheel and wheel hub coaxial and affixed with substrate, described angular transducer is fixed on strip stay bearing plate one end, and this end is fixed on outside vehicle body, the described stay bearing plate other end is fixed in rotating shaft, and described rotating shaft is extended by drive wheel axle center, and described drive wheel is connected by crawler belt with between angular transducer.
The method of inspection of TPMS system calibrating detecting device:
Step 1, finishing equipment connect;
Step 2, detection antenna receiving intensity, spectrometer has the tire pressure monitoring unit in corresponding 4 wheels of 4 curves; Detect RF dash receiver receiving sensitivity, utilize signal generator to pass through simulation FSK or ASK signal, logic analyser has sensitivity straight line;
Step 3, judgement, if 4 curve nadirs are lower than sensitivity straight line 3-5DB, then system stability, otherwise system exception.
In described step 3, signal is delivered to PC by logic analyser and spectrometer, by PC by two take off data overlaps.
Graphic statistics is carried out after at least rotating 3 whole circles by angular transducer induction motor tire in described step 2.
The invention has the advantages that apparatus structure is simplified, use reliable, whether the system calibrating can measuring TPMS system accurately prepares, and contributes to the product design improving automobile vendor.
Accompanying drawing explanation
Mark in the content expressed every width accompanying drawing in specification sheets of the present invention below and figure is briefly described:
Fig. 1 is antenna receiving intensity detecting unit structured flowchart;
Fig. 2 is RF dash receiver receiving sensitivity detecting unit structured flowchart;
Fig. 3 is result of a measurement figure;
Mark in above-mentioned figure is: 1, antenna; 2, spectrometer; 3, PC; 4, angular transducer; 5, signal generator; 6, RF dash receiver; 7, logic analyser.
Detailed description of the invention
Native system is for detecting and verify the demarcation of TPMS system, to ensure that this system can be client and shows correct tire pressure and temperature and alarm message in real time, system comprises BCM module antenna 1 some antennas 1 receiving intensity detecting unit and RF dash receiver 6 receiving sensitivity detecting unit structured flowchart
TPMS system calibrating detecting device system comprises antenna 1 receiving intensity detecting unit and RF dash receiver 6 receiving sensitivity detecting unit.
As shown in Figure 1, BCM receiver module is arranged on real vehicle by antenna 1 receiving intensity detecting unit, and it is motionless to be fixed on installation site, antenna 1 interface end of antenna 1 portion distal end and RF dash receiver 6 is disconnected, antenna 1 end utilizes connecting interface (signal strength loss is within 3DB) to be connected on spectrometer 2, and spectrometer 2 current events detect the signal strength received.Time fixing, the antenna 1 of TPMS system is fixed on the position that it was originally positioned at car, can ensure detection accuracy like this, namely simulate lower antenna 1 receiving condition of time state.
For guaranteeing measurement accuracy, antenna 1 receiving intensity detecting unit is also provided with angular transducer 4, and angular transducer 4 is fixed on above the wheel hub of tire, and signal is delivered to PC 3 by angular transducer 4 and spectrometer 2, further data analysis can be carried out to data, and utilize PC 3 to store.
For convenience of disassemblerassembler, angular transducer 4 can adopt following fixed form, substrate is fixed on outside automotive hub by fixed mechanism, can be fixed by default mounting hole and band, drive wheel is fixed with outside substrate, drive wheel and wheel hub coaxial and affixed with substrate, can with car vehicle wheel rotation, angular transducer 4 is fixed on strip stay bearing plate one end, and this end is fixed on outside vehicle body, fix by sucker, the stay bearing plate other end is fixed in rotating shaft, this rotating shaft is extended by drive wheel axle center, connected by crawler belt between drive wheel with angular transducer 4, can be rotated by drive wheel angular transducer 4 like this, realize angular transducer 4 and detect wheel spin status.
Antenna 1 receiving intensity detecting unit is detected under different angles by 4 tires of angular transducer 4 and spectrometer 2 pairs of automobiles, the RF signal of sensor emission, the strength conditions that BCM module antenna 1 receives.
RF dash receiver 6 receiving sensitivity detecting unit as shown in Figure 2, first on BCM receiver module, disconnects RF receiver module antenna 1 end and is connected with BCM antenna 1.Special antenna 1 (signal strength loss is within 3DB) is utilized antenna 1 interface end of RF dash receiver 6 and signal generator 5 to be linked together.By signal generator 5, simulation FSK or ASK signal (different sensor, the pattern of employing and transfer rate are all different) FSK, 9.6KBit/ASK, 4.2KBit are input to antenna 1 end of RF dash receiver 6.The DATA data terminal of upper RF receiver module is connected by logic analyser 7, and GND end, identify by software (dutycycle identifies preamble number, etc. condition) analog signal received, can BCM correctly identify analog signal.After equipment connection is good, by the intensity of conditioning signal producer 5, and logic analyser 7, the situation of analysis, judges the receiving sensitivity of RF dash receiver 6.Logic analyser 7 also by information conveyance to PC 3, by aggregation of data relatively and store.
The sensitivity detector that RF receives, utilize signal generator 5 by analog signal (FSK, 9.6KBit/ASK, 4.2KBit) input RF receiver module antenna 1 end, recycling logic analyser 7, analyze dutycycle and the integraty of data, detect with this sensitivity that RF receives.
Concrete determination methods is as follows:
Step 1, finishing equipment connect;
Step 2, detection antenna 1 receiving intensity, spectrometer 2 has the tire pressure monitoring unit in corresponding 4 wheels of 4 curves; Detect RF dash receiver 6 receiving sensitivity, utilize signal generator 5 by simulation FSK or ASK signal, logic analyser 7 has sensitivity straight line; Responded to after motor tire at least rotates 3 whole circles by angular transducer 4 and carry out graphic statistics, the accuracy detected can be guaranteed like this, avoid the interference of special angle.
Step 3, judgement, if 4 curve nadirs are lower than sensitivity straight line 3-5DB, then system stability, otherwise system exception.Signal is delivered to PC 3 by logic analyser 7 and spectrometer 2, by PC 3 by two take off data overlaps (as Fig. 3).
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (6)
1.TPMS system calibrating detecting device, is characterized in that: system comprises antenna receiving intensity detecting unit and RF dash receiver receiving sensitivity detecting unit;
Described antenna receiving intensity detecting unit: the antenna of TPMS system is fixed on the position that it was originally positioned at car, and antenna is connected with the signal input part of spectrometer;
Described RF dash receiver receiving sensitivity detecting unit: RF dash receiver antennal interface end and signal generator are linked together, is connected the DATA data terminal of RF dash receiver with logic analyser with GND end.
2. TPMS system calibrating detecting device according to claim 1, it is characterized in that: described vehicle is fixed with angular transducer, signal is delivered to PC by described angular transducer and spectrometer, logic analyser also by information conveyance to PC.
3. TPMS system calibrating detecting device according to claim 2, it is characterized in that: substrate is fixed on outside automotive hub by fixed mechanism, drive wheel is fixed with outside substrate, described drive wheel and wheel hub coaxial and affixed with substrate, described angular transducer is fixed on strip stay bearing plate one end, and this end is fixed on outside vehicle body, and the described stay bearing plate other end is fixed in rotating shaft, described rotating shaft is extended by drive wheel axle center, and described drive wheel is connected by crawler belt with between angular transducer.
The method of inspection of 4.TPMS system calibrating detecting device, is characterized in that:
Step 1, finishing equipment connect;
Step 2, detection antenna receiving intensity, spectrometer has the tire pressure monitoring unit in corresponding 4 wheels of 4 curves; Detect RF dash receiver receiving sensitivity, utilize signal generator to pass through simulation FSK or ASK signal, logic analyser has sensitivity straight line;
Step 3, judgement, if 4 curve nadirs are lower than sensitivity straight line 3-5DB, then system stability, otherwise system exception.
5. the method for inspection of TPMS system calibrating detecting device according to claim 4, it is characterized in that: in described step 3, signal is delivered to PC by logic analyser and spectrometer, by PC by two take off data overlaps.
6. the method for inspection of the TPMS system calibrating detecting device according to claim 4 or 5, is characterized in that: carry out graphic statistics after at least rotating 3 whole circles by angular transducer induction motor tire in described step 2.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410706865.XA CN104401191B (en) | 2014-11-28 | 2014-11-28 | TPMS system calibrating detection device and detection method thereof |
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| CN201410706865.XA CN104401191B (en) | 2014-11-28 | 2014-11-28 | TPMS system calibrating detection device and detection method thereof |
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| CN104401191A true CN104401191A (en) | 2015-03-11 |
| CN104401191B CN104401191B (en) | 2016-08-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115447323A (en) * | 2022-09-14 | 2022-12-09 | 东风柳州汽车有限公司 | Tire pressure monitoring receiver testing method and system |
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|---|---|---|---|---|
| EP0763437A1 (en) * | 1995-09-18 | 1997-03-19 | Alpha-Beta Electronics Ag | Tyre-pressure surveillance device |
| US6181241B1 (en) * | 1995-11-17 | 2001-01-30 | Beru Aktiengesellschaft | Method of allocating transmitters of a tire pressure monitoring system to a particular vehicle |
| JP2006015895A (en) * | 2004-07-02 | 2006-01-19 | Nissan Motor Co Ltd | Tire air pressure monitoring device |
| CN101148143A (en) * | 2006-09-19 | 2008-03-26 | 株式会社电装 | Wheel position detecting deviceand tire air pressure detecting device including the same |
| CN204354738U (en) * | 2014-11-28 | 2015-05-27 | 埃泰克汽车电子(芜湖)有限公司 | TPMS system calibrating detecting device |
-
2014
- 2014-11-28 CN CN201410706865.XA patent/CN104401191B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0763437A1 (en) * | 1995-09-18 | 1997-03-19 | Alpha-Beta Electronics Ag | Tyre-pressure surveillance device |
| US6181241B1 (en) * | 1995-11-17 | 2001-01-30 | Beru Aktiengesellschaft | Method of allocating transmitters of a tire pressure monitoring system to a particular vehicle |
| JP2006015895A (en) * | 2004-07-02 | 2006-01-19 | Nissan Motor Co Ltd | Tire air pressure monitoring device |
| CN101148143A (en) * | 2006-09-19 | 2008-03-26 | 株式会社电装 | Wheel position detecting deviceand tire air pressure detecting device including the same |
| CN204354738U (en) * | 2014-11-28 | 2015-05-27 | 埃泰克汽车电子(芜湖)有限公司 | TPMS system calibrating detecting device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115447323A (en) * | 2022-09-14 | 2022-12-09 | 东风柳州汽车有限公司 | Tire pressure monitoring receiver testing method and system |
| CN115447323B (en) * | 2022-09-14 | 2023-07-07 | 东风柳州汽车有限公司 | Tire pressure monitoring receiver testing method and system |
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| CN104401191B (en) | 2016-08-24 |
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Address after: 241000 No. 48, Yinhu North Road, Wuhu District, China (Anhui) Free Trade Pilot Zone, Wuhu City, Anhui Province Patentee after: Wuhu Etec Automotive Electronics Co.,Ltd. Address before: 241000 No. 48, Yinhu North Road, Wuhu Economic and Technological Development Zone, Anhui Province Patentee before: ATECH AUTOMOTIVE (WUHU) Co.,Ltd. |
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Effective date of registration: 20230524 Address after: 200082 538 Dalian Road, Yangpu District, Shanghai Patentee after: CONTINENTAL INVESTMENT (CHINA) Co.,Ltd. Address before: 241000 No. 48, Yinhu North Road, Wuhu District, China (Anhui) Free Trade Pilot Zone, Wuhu City, Anhui Province Patentee before: Wuhu Etec Automotive Electronics Co.,Ltd. |