CN109421446B - Recorder of tire pressure detector and recording method thereof - Google Patents

Recorder of tire pressure detector and recording method thereof Download PDF

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Publication number
CN109421446B
CN109421446B CN201710759196.6A CN201710759196A CN109421446B CN 109421446 B CN109421446 B CN 109421446B CN 201710759196 A CN201710759196 A CN 201710759196A CN 109421446 B CN109421446 B CN 109421446B
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CN
China
Prior art keywords
pressure detector
tire pressure
recorder
recording
chip
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Expired - Fee Related
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CN201710759196.6A
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Chinese (zh)
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CN109421446A (en
Inventor
施仁元
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Mobiletron Electronics Co Ltd
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Mobiletron Electronics Co Ltd
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Priority to CN201710759196.6A priority Critical patent/CN109421446B/en
Publication of CN109421446A publication Critical patent/CN109421446A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
    • B60C23/0471—System initialisation, e.g. upload or calibration of operating parameters
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/60—Software deployment
    • G06F8/61—Installation

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  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

A recorder and a recording method for a tire pressure detector can judge the type of a main chip of the tire pressure detector by measuring the electric potential of a data transmission pin or a synchronous signal pin on the tire pressure detector, and automatically list an applicable communication program list for a user to select and record the main chip to the tire pressure detector.

Description

Recorder of tire pressure detector and recording method thereof
Technical Field
The present invention relates to a recording technique for a tire pressure detector, and more particularly, to a recording device and a recording method for distinguishing the type of a chip from the level of a contact potential.
Background
The tire pressure detector can detect the values of tire pressure, temperature and the like, and transmits the values to the in-vehicle device for a driver to interpret in real time, the values become the standard equipment of the automobile gradually, the signal formats which can be received by the in-vehicle devices of various automobile brands are different, even the in-vehicle devices of the same automobile brand can adapt to different signal formats along with the difference of the automobile money or the delivery time, therefore, the tire pressure detector is loaded with an applicable specific communication program, the transmitted signals meet the format requirements of the corresponding in-vehicle devices, and the tire pressure detector can only operate normally.
Most of the existing tire pressure detectors adopt an SP37 chip produced by Infineon Technologies AG (de business), or an FXTH87 chip of Freescale Semiconductor Inc.) as a main chip, besides, other IC design companies continue to invest in the development and manufacture of tire pressure main detectors along with the vigorous development of automotive electronics, resulting in the selection of various chips in the market; however, even though the same type of vehicle is in the same year, the communication procedures applied to the tire pressure detector are naturally different as long as the main chip mounted on the tire pressure detector is different, and therefore, a maintenance factory or a retailer providing the tire pressure detector installation service naturally needs to prepare the communication procedures required by the various chips for various types of vehicles for installation.
However, the tire pressure detector may not determine the type of the main chip thereof by the appearance, and therefore, how to accurately distinguish the type of the main chip carried by the tire pressure detector, so as to select the applicable communication program version to be recorded to the tire pressure detector is a problem to be solved in the art.
Disclosure of Invention
In view of the above, the present invention provides a recorder for a tire pressure detector and a recording method thereof, which can distinguish the types of main chips of the tire pressure detector, thereby selecting an appropriate communication procedure.
To achieve the above object, the inventor firstly analyzes the SP37 chip and the FXTH87 chip, and finds that a flash memory (flash memory) is disposed inside each chip for storing an applicable communication program, and a plurality of pins with the same function are still disposed between different chips, wherein one pin is a DATA transmission pin (i.e., DATA pin), the chip receives the communication program transmitted from the recorder through the pin, and then stores the communication program in the flash memory for use, and the other pin is a synchronization signal pin (i.e., CLK pin) for receiving a synchronization pulse signal; the inventor finds that the potentials of the data transmission pin and the synchronization signal pin of each chip are different, at least on the SP37 chip and the FXTH87 chip, the potentials of the data transmission pin and the synchronization signal pin of the SP37 chip are 0 volt, and the potentials of the data transmission pin and the synchronization signal pin of the FXTH87 chip are 3 volts, so that if a writer can measure the potentials of the data transmission pin or the synchronization signal pin of the chip in advance before writing, the type of the chip can be judged, and the proper communication program version can be correctly selected for writing, besides, the pins of other chips except SP37 and th87 should have specific and enough potential values for identification, and therefore, the judging method should also be applicable to other chips except SP37 and FXTH 87.
Therefore, the recorder of the tire pressure detector of the invention is used for recording a communication program into a tire pressure detector, the tire pressure detector comprises a plurality of recording connection points, and the recorder comprises a microprocessor unit and a memory with a plurality of recording connection points.
The memory is electrically connected with the microprocessing unit and stores a plurality of communication programs of a first chip version and a plurality of communication programs of a second chip version.
The recording contact of the recorder is electrically connected with the microprocessor unit and corresponds to the recording contact of the tire pressure detector.
The microprocessor can determine to adopt the communication program of the first chip version to carry out recording or adopt the communication program of the second chip version to carry out recording according to the electric potential of the pressure detector corresponding to the recording contact which is measured by at least one recording contact of the recorder.
In a preferred embodiment of the present invention, the recorder further comprises a keyboard and a display module, the keyboard and the display module are electrically connected to the microprocessor respectively, and the recorder measures the potential of a data transmission contact or a synchronization signal contact of the tire pressure detector.
In the recorder according to another preferred embodiment of the present invention, the memory further stores a plurality of communication programs of a third chip version and a plurality of communication programs of a fourth chip version, and the recorder measures the potentials of the data transmission contact and the synchronization signal contact of the tire pressure detector at the same time to determine whether to record the communication program of the first chip version, or to record the communication program of the second chip version, or to record the communication program of the third chip version, or to record the communication program of the fourth chip version.
The invention relates to a burning method of a tire pressure detector, which comprises the following steps:
(a) providing a recorder, wherein the recorder comprises a plurality of recording contacts and a memory, the recording contacts correspond to the plurality of recording contacts on the tire pressure detector, and the memory stores a plurality of communication programs of a first chip version and a plurality of communication programs of a second chip version.
(b) The tire pressure detector is connected to the loader, so that the recording contacts of the tire pressure detector and the loader are connected with each other.
(c) At least one recording contact of the recorder is used to measure the voltage level of the tire pressure detector corresponding to the recording contact.
(d) The recorder automatically determines whether to adopt the communication program of the first chip version for recording or adopt the communication program of the second chip version for recording according to the level of the electric potential.
In a preferred embodiment of the present invention, the step (d) further comprises the following steps:
(d1) the recorder automatically determines to display the communication program of the first chip version on a display module or display the communication program of the second chip version on the display module according to the electric potential; (d2) selecting one of the communication programs by a user; and (d3) the recorder records the communication program selected by the user to the tire pressure detector.
In the recording method according to another preferred embodiment of the present invention, the memory further stores the communication programs of the third chip versions and the communication programs of the fourth chip versions; the recorder in step (c) measures the electric potential of the data transmission joint and the synchronous signal joint of the tire pressure detector at the same time; and the recorder in step (d) automatically determines to adopt the communication program of the first chip version to record according to the electric potential, or adopt the communication program of the second chip version to record, or adopt the communication program of the third chip version to record, or adopt the communication program of the fourth chip version to record.
Therefore, the recorder can not only judge the chip type of the tire pressure detector, but also automatically select the appropriate chip version for recording, thereby avoiding the misplacement of a communication program caused by artificial careless and improving the convenience in use.
Drawings
Fig. 1 is a bottom view of a tire pressure detector according to a preferred embodiment of the present invention.
Fig. 2 is a configuration diagram of internal components of the tire pressure detector.
FIG. 3 is a front view of a recorder according to a preferred embodiment of the invention.
FIG. 4 is a diagram of the arrangement of the internal components of the recorder.
[ notation ] to show
100 recorder
10 tire pressure detector
12 shell 131 and 136 recording contact 14 microprocessing unit
141 main chip 15 battery 16 oscillator
17 receiver 18 transmitter
20 housing 22 keyboard 24 display module
26 communication port 28 charging port 301 and 306 recording contact
32 micro-processing unit 34 memory
36 access and power management module 38 charging circuit 40 power supply voltage stabilizing circuit
42 cell
Detailed Description
In order to more clearly illustrate the present invention, the following two preferred embodiments will be illustrated in detail with reference to the accompanying drawings.
The recorder 100 and the recording method of the tire pressure detector according to the first preferred embodiment of the present invention are used for recording a communication program to a tire pressure detector 10, the tire pressure detector 10 includes a housing 12 and a plurality of recording contacts 131-, the sync signal pad 132 and the data transmission pad 135 are directly connected to the sync signal pin (not shown) and the data transmission pin (not shown) of the main chip 141, so that the level of the main chip data transmission pin and the sync signal pin can be known by directly measuring the level of the sync signal pad 132 and the data transmission pad 135; the other recording contacts 131, 133, 134, 136 and the other internal components 16-18 of the tire pressure detector 10 are not described in detail herein.
Referring to fig. 3 and 4, the recorder 100 includes a housing 20, a keyboard 22, a display module 24, a communication port 26, a charging port 28, and a plurality of recording contacts 301 and 306, and the recorder 100 further includes a microprocessor 32, a memory 34, an access and power management module 36, a charging circuit 38, a power regulator 40, and a battery 42 inside the housing 20.
The keyboard 22 and the display module 24 are electrically connected to the microprocessor unit 32.
The communication port 26 is a Universal Serial Bus (USB) port, and is connected to the microprocessor unit 32 through the access and power management module 36 for updating the communication program data stored in the recorder 100.
The charging port 28 is a micro-USB port, and is electrically connected to the microprocessor unit 32 through the charging circuit 38 and the power stabilizing circuit 40 for receiving the power provided from the outside, and the charging circuit 38 is directly connected to the microprocessor unit 32 and the battery 42.
The recording contacts 301 and 306 are electrically connected to the microprocessor unit 32 and correspond to the recording contacts 131 and 136 of the tire pressure detector 10, wherein the two recording contacts 302 and 305 are a synchronization signal contact 302 and a data transmission contact 305, and the two recording contacts 302 and 305 also have a function of measuring the voltage levels of the recording contacts 132 and 135 corresponding to the tire pressure detector 10; in addition, the level of the measurement potential is not limited to the level of the measurement potential, but only needs to roughly distinguish the recording contacts 132 and 135 as higher or lower potential for distinguishing the types of the main chips 141.
The Memory 34 is a Flash Memory (Flash Memory) and is electrically connected to the microprocessor unit 32 for storing a plurality of communication programs of a first chip version, which is a communication program applicable to the SP37 chip, and a plurality of communication programs of a second chip version, which is a communication program applicable to the FXTH87 chip.
In addition, the microprocessor 32 can determine whether the tire pressure detector 10 is mounted with SP37 chip or FXTH87 chip according to the levels of the synchronization signal node 132 and the data transmission node 135 of the tire pressure detector 10 measured by the synchronization signal node 302 and the data transmission node 305 of the recorder 100, and then determine whether to use the communication program of the first chip version or the second chip version for recording.
In addition, the method for recording the tire pressure detector 10 of the present invention is a method for recording the communication program to the tire pressure detector 10, and comprises the following steps:
(a) providing a recorder 100, wherein the recorder 100 comprises the plurality of recording contacts 301 and 306 and the memory 34, the recording contacts 301 and 306 correspond to the plurality of recording contacts 131 and 136 on the tire pressure detector 10, and the memory 34 stores the communication programs of the plurality of first chip versions and the communication programs of the plurality of second chip versions.
(b) The tire pressure detector 10 is connected to the recorder 100, so that the recording contacts 131 and 136, 301 and 306 are connected to each other.
(c) The voltage level of the tire pressure detector 10 corresponding to the recording contacts 131 and 136 is measured by at least one recording contact 301 and 306 of the recording device 100: in this embodiment, the measurement of the recorder 100 and the measurement of the tire pressure detector 10 are performed by using both the synchronization signal pads 302, 132 and the data transmission pads 305, 135, and if only the voltage level of one of the synchronization signal pad 132 and the data transmission pad 135 is measured, the effect can be achieved.
(d) The recorder 100 automatically determines whether to record by using the communication program of the first chip version or to record by using the communication program of the second chip version according to the level of the electric potential; this step (d) can be further subdivided into steps (d1) to (d 3):
(d1) the recorder 100 automatically determines whether to display the communication program of the first chip version on the display module 24 or display the communication program of the second chip version on the display module 24 according to the level of the voltage.
Since vehicles with different brands, different vehicle types and different delivery years can be suitable for different communication programs, the display module 24 needs to list various communication programs according to the brands, the vehicle types and the delivery years for the user to select; moreover, the data transmission pin and the synchronization signal pin of the SP37 chip are both at 0 v, and the data transmission pin and the synchronization signal pin of the FXTH87 chip are at 3 v, so if the potential measured by the recorder 100 is a lower potential close to 0 v, the microprocessor unit 32 searches the memory 34 for the communication program of the SP37 chip, i.e., the communication program of the first chip version, and displays a list of the communication programs on the display module 24 for selection by the user, and if the potential measured by the recorder 100 is a higher potential close to 3 v, the display module 24 searches the communication program of the FXTH87 chip, i.e., the communication program of the second chip version, and lists the list through the display module 24 for selection by the user.
(d2) Selecting one of the communication programs by the user.
(d3) The recorder 100 records the communication procedure selected by the user to the tire pressure detector 10.
By the above-mentioned apparatus and method, the recorder 100 can determine whether the connected tire pressure detector 10 is equipped with the SP37 chip or the FXTH87 chip according to the potential levels of the synchronization signal contacts 302, 132 and the data transmission contacts 305, 135, and automatically list the suitable communication program version for the user to select, thereby recording, so as to avoid the communication program misplacement caused by human error, and greatly improve the convenience in use.
In addition, the difference between the recorder 100 and the recording method of the tire pressure detector according to the second preferred embodiment of the present invention and the first embodiment is that, in the step (a), the memory of the recorder 100 stores not only the communication programs of the first chip versions and the communication programs of the second chip versions, but also the communication programs of the third chip version and the communication programs of the fourth chip version, where the third chip and the fourth chip are two specific tire pressure type detector chips except the SP37 chip and the FXTH87 chip, the synchronization signal pin of the third chip is at a high potential, the data transmission pin is at a low potential, the synchronization signal pin of the fourth chip is at a low potential, and the data transmission pin is at a high potential, that is, the synchronization signal pins of the first to fourth chips and the data transmission pin are at a high potential and a low potential, respectively, Four different combinations of "low", "high low" and "low high"; in step (c), the recorder 100 also uses the sync signal pad 302 and the data transmission pad 305 to measure the voltage levels of the data transmission pad 132 and the sync signal pad 135 of the tire pressure detector 10 to determine the type of the chip; in step (d), the recorder 100 automatically determines whether to record by using the communication program of the first chip version, or to record by using the communication program of the second chip version, or to record by using the communication program of the third chip version, or to record by using the communication program of the fourth chip version according to the level of the voltage.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A recorder of tire pressure detector is used to record a communication program into a tire pressure detector, the tire pressure detector includes a plurality of recording contacts, the recorder includes:
a micro-processing unit;
the memory is electrically connected with the microprocessing unit and stores a plurality of communication programs of a first chip version and a plurality of communication programs of a second chip version; and
a plurality of burning contacts electrically connected to the microprocessor unit and corresponding to the burning contacts of the tire pressure detector;
the microprocessor can determine to adopt the communication program of the first chip version to carry out recording or adopt the communication program of the second chip version to carry out recording according to the electric potential of the pressure detector corresponding to the recording contact which is measured by at least one recording contact of the recorder.
2. The loader of claim 1, further comprising a keyboard and a display module, wherein the keyboard and the display module are electrically connected to the microprocessor.
3. The loader of claim 1, wherein the loader measures the voltage level of a data transmission node or a synchronization signal node of the tire pressure detector.
4. The loader of claim 1, wherein the memory further stores a plurality of communication programs of a third chip version and a plurality of communication programs of a fourth chip version, and the loader measures the data transmission connection and the synchronization signal connection of the tire pressure detector at the same time to determine whether to use the communication program of the first chip version for loading, or use the communication program of the second chip version for loading, or use the communication program of the third chip version for loading, or use the communication program of the fourth chip version for loading.
5. A recording method of a tire pressure detector is used for recording a communication procedure into a tire pressure detector, the tire pressure detector comprises a plurality of recording contacts, and the method comprises the following steps:
a. providing a recorder, wherein the recorder comprises a plurality of recording contacts and a memory, the recording contacts correspond to the plurality of recording contacts on the tire pressure detector, and the memory stores a plurality of communication programs of a first chip version and a plurality of communication programs of a second chip version;
b. connecting the tire pressure detector to the recorder to connect the recording contacts of the tire pressure detector and the recorder to each other;
c. measuring the voltage level of the tire pressure detector corresponding to the recording contact by using at least one recording contact of the recorder; and
d. the recorder automatically determines whether to adopt the communication program of the first chip version for recording or adopt the communication program of the second chip version for recording according to the level of the electric potential.
6. The method of claim 5, wherein step d comprises:
d1, the recorder automatically determines to display the communication program of the first chip version on a display module or display the communication program of the second chip version on the display module according to the level of the electric potential;
d2, selecting one of the communication programs by the user; and
d3, the recorder records the communication program selected by the user to the tire pressure detector.
7. The method of claim 5, wherein the loader of step c measures the voltage level of a data transmission node or a synchronization signal node of the tire pressure detector.
8. The method of claim 5, wherein the memory further stores the communication programs of the third chip versions and the communication programs of the fourth chip versions; c, the recorder measures the electric potential of the data transmission joint and the synchronous signal joint of the tire pressure detector at the same time; and the recorder of step d automatically determines to adopt the communication program of the first chip version to record according to the electric potential, or adopt the communication program of the second chip version to record, or adopt the communication program of the third chip version to record, or adopt the communication program of the fourth chip version to record.
CN201710759196.6A 2017-08-29 2017-08-29 Recorder of tire pressure detector and recording method thereof Expired - Fee Related CN109421446B (en)

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CN109421446B true CN109421446B (en) 2021-03-23

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Publication number Priority date Publication date Assignee Title
CN113602045A (en) * 2020-05-04 2021-11-05 车王电子股份有限公司 Wireless recording method of tire pressure detector

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CN104502017A (en) * 2014-02-26 2015-04-08 上海为彪汽配制造有限公司 Burning tool and method for simultaneously burning communication protocols of multiple tire pressure sensors

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TWI387922B (en) * 2005-12-29 2013-03-01 Hon Hai Prec Ind Co Ltd System of burning chips
US20120050029A1 (en) * 2010-08-27 2012-03-01 San-Chuan Yu Programmable tire monitoring device and its method of use
CN102173284B (en) * 2011-02-23 2013-07-17 上海为彪汽配制造有限公司 Blank tire pressure detector and setting method thereof
CN103373184A (en) * 2012-04-17 2013-10-30 上海保隆汽车科技股份有限公司 TPMS (Tire Pressure Monitoring System) sensor and program loading and selecting method thereof
CN203324976U (en) * 2013-05-31 2013-12-04 上海英恒电子有限公司 Programming device
TWI573702B (en) * 2015-10-12 2017-03-11 Mobiletron Electronics Co Ltd Tire pressure sensor burner

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