CN101853536A - Test desk and test method for remote access control system of automobile - Google Patents
Test desk and test method for remote access control system of automobile Download PDFInfo
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Abstract
The invention discloses a test desk for a remote access control system of an automobile. The test desk comprises a tested key, an automobile body control module, an air pump, a test board and a radio-frequency signal receiving indicator, and is connected with a computer mainframe through a CAN bus. In the test process, the test board controls the air pump to operate so as to lead the key to automatically press a button; the air pump, the key, the radio-frequency signal receiving indicator and the automobile body control module operate independently and send out response signals; the test board receives and counts the response signals in sequence; and the test board can also decode PWM signals sent out by the key and counts the frequency of decoding. The invention also discloses a test method for the remote access control system of the automobile. The invention can monitor the whole test process, realizes rapid failure locating, has generality, can realize the testing of remote access control systems of different types, and can realize automatic test, thus greatly saving manpower, improving work efficiency and lowering test cost.
Description
Technical field
The present invention relates to a kind of auto parts machinery experiment detection device, particularly relate to a kind of test board of remote access control system of automobile; The invention still further relates to a kind of method of testing of remote access control system of automobile.
Background technology
Remote access control system of automobile (RKE, Remote Keyless Entry) is nowadays substantially as the standard configuration of vehicle.Except the convenience of conspicuous teleswitching door, RKE and engine anti-theft equipment (IMMO) cooperate, and also have antitheft effect.
But because the environment in the practical application varies, RKE carries out communication as wireless device and automobile, between the two unavoidably can be disturbed, exist numerous uncertain factors simultaneously.For the influence that allows this uncertain factor bring drops to minimumly, it is very necessary that the workflow of whole RKE is tested.
Existing RKE test board all belongs to the test board to the customization of car load factory, this class testing platform function singleness, only the emission and the reception success ratio of remote-control key are made a record, can not go to probe into behind a RKE operation failure is which link has problem on earth, and to receive what handle can only be the remote-control key that the client of car load factory provides, and lacks versatility.Existing in addition RKE test board does not possess the online upgrading function.Existing RKE test board does not possess the remote-control key learning functionality.
Summary of the invention
Technical matters to be solved by this invention provides a kind of test board of remote access control system of automobile, can monitor whole testing process, realize losing efficacy fast the location, and has versatility, can realize test, can also improve testing efficiency and reduce testing cost dissimilar remote access control system of automobile; The present invention also provides a kind of method of testing of remote access control system of automobile for this reason.
For solving the problems of the technologies described above, the invention provides a kind of test board of remote access control system of automobile, described test board is installed in the test box of a complete closed and by a CAN bus and links to each other with a main frame.Described remote access control system of automobile comprises a tested key and a tested car body control module; Described key comprises a button and a transmitter module, by triggering unlocking signal or block signal by described button down, exports by wireless signal by described transmitter module formation pulse width modulating signal and with described pulse width modulating signal; Described car body control module comprises a receiver module and an execution module, receives described wireless signal and decoding by described receiver module, obtains decoded result one.Described test board comprises: a test board, an air pump, a radiofrequency signal receiver-indicator; Described test board is connected with described air pump, described radiofrequency signal receiver-indicator, described key and described car body control module rigid line respectively.Described air pump and described button are corresponding to be provided with, and is used for automatically down by described button, and described air pump action is subjected to the control of described test board; Described radiofrequency signal receiver-indicator is used to receive described wireless signal; A response signal one, described button are once exported in the every action of described air pump, and every a response signal two, described radiofrequency signal receiver-indicator are every to receive successfully that described wireless signal is once exported a response signal three, a response signal four is once exported in the every successfully decoding of described car body control module decoding by once exporting down.Described test board comprises: microprocessor, signal acquisition module, key decoder module, CAN communication module, key study matching module and memory module; Wherein said microprocessor is used to realize the control of computing and whole test process; Described signal acquisition module is used for described pulse width modulating signal and described decoded result one; The described key decoder module described pulse width modulating signal that is used to decode obtains decoded result two, all exports a response signal five after decoding successfully at every turn; Described signal acquisition module also is used to receive described response signal one, response signal two, response signal three, response signal four, response signal five and carries out accumulated counts respectively; Described CAN communication module is used for carrying out exchanges data with main frame; Described key study matching module is used to remember and the described key that mates different encryption types automatically; Described memory module is used to store data, as system software, as described in air pump control program, as described in decoding software, the test result of key decoder module.Described test board comprises polytype decoding software, is respectively applied for the dissimilar key of coupling.The system of described test board can carry out online upgrading by the CAN bus.
For solving the problems of the technologies described above, the invention provides a kind of method of testing of remote access control system of automobile, comprise the steps:
Step 1, by an air pump realize button to the key of described remote access control system of automobile carry out automatically down by, a response signal one is once all exported in the every work of described air pump, described button is successfully worked at every turn and is once all exported a response signal two.
Step 2, described button are pressed successfully down, and back triggering one unlocking signal or closes lock signal, the transmitter module of described remote access control system of automobile is described unlocking signal or to shut conversion of signals be to export behind the pulse width modulating signal, and pulse width modulating signal is also gone out by wireless signal transmission.
Step 3, receive described wireless signal, and after receiving successfully, all export a response signal three at every turn by a radiofrequency signal receiver-indicator.
The car body control module of step 4, described remote access control system of automobile is decoded after receiving described wireless signal and converting described wireless signal to pulse width modulating signal, obtains decoded result one, all exports a response signal four after decoding successfully at every turn.
Step 5, receive described response signal one, response signal two, response signal three, response signal four by a test board; Described test board is received pulse bandwidth modulation signals and decoding also, obtains decoded result two, all exports a response signal five after decoding successfully at every turn.
Whether identical whether and decoded result one and decoded result two identical by contrast response signal one, response signal two, response signal three, response signal four and response signal five judges whether success of this test for step 6, described test board; Described test board also carries out accumulated counts respectively to described response signal one, response signal two, response signal three, response signal four and response signal five.
Step 7, by the automatic control repeating step one to six of described test board to described air pump, through repeatedly obtaining the accumulated counts result of described response signal one, response signal two, response signal three, response signal four and response signal five after the test, the accumulated counts result by more described each response signal analyzes whole test result.
Step 8, the accumulated counts result of each time test result of described response signal one, response signal two, response signal three, response signal four, response signal five, decoded result one, decoded result two and described response signal one, response signal two, response signal three, response signal four, response signal five is outputed in the main frame by the CAN bus.
Wherein, described test board is connected with described air pump, described radiofrequency signal receiver-indicator, described key and described car body control module rigid line respectively, described test board comprises: microprocessor, signal acquisition module, the key decoder module, the CAN communication module, key study matching module and memory module; Wherein said microprocessor is used to realize the control of computing and whole test process; Described signal acquisition module is used to receive described pulse width modulating signal, each described response signal and described decoded result one; The described key decoder module described pulse width modulating signal that is used to decode; Described CAN communication module is used for carrying out exchanges data with main frame; Described key study matching module is used to remember and the described key that mates different encryption types automatically; Described memory module is used to store data, as system software, as described in air pump control program, as described in decoding software, the test result of key decoder module.Described test board comprises polytype decoding software, is respectively applied for the dissimilar key of coupling.The system of described test board can carry out online upgrading by the CAN bus.
The present invention can monitor whole testing process, realizes losing efficacy fast the location.Test board of the present invention can be installed polytype decoding software and online the refreshing of energy, is respectively applied for the dissimilar key of coupling, has versatility, can realize the test to dissimilar remote access control system of automobile.Thereby test board of the present invention can also be realized automatic test and can save manpower greatly and make whole test process become simpler, improves testing efficiency.The present invention can also reduce testing cost.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments:
Fig. 1 is the structural representation of embodiment of the invention test board.
Embodiment
As shown in Figure 1, be the structural representation of embodiment of the invention test board.The test board of embodiment of the invention remote access control system of automobile is installed in the test box of a complete closed, and links to each other with a main frame by a CAN bus.
Described remote access control system of automobile comprises a tested key and a tested car body control module; Wherein,
Described key comprises a button and a transmitter module, and described transmitter module has comprised chip and emitting antenna as shown in Figure 1.By triggering unlocking signal or block signal by described button down, chip by described transmitter module is the PWM data-signal with described unlocking signal or block signal conversion formation pulse-length modulation, by the emitting antenna of described transmitter module described pulse width modulating signal is exported by wireless signal at last, the described wireless signal of present embodiment is the radio frequency signal of a 433MHz.Described car body control module comprises a receiver module and an execution module, receives described wireless signal and decoding by described receiver module, obtains decoded result one.
Described test board comprises: a test board, an air pump, a radiofrequency signal receiver-indicator; Described test board is connected with described air pump, described radiofrequency signal receiver-indicator, described key and described car body control module rigid line respectively;
Described air pump and described button are corresponding to be provided with, and is used for automatically down by described button, and described air pump action is subjected to the control of described test board; Described radiofrequency signal receiver-indicator is used to receive described wireless signal; A response signal one, described button are once exported in the every action of described air pump, and every a response signal two, described radiofrequency signal receiver-indicator are every to receive successfully that described wireless signal is once exported a response signal three, a response signal four is once exported in the every successfully decoding of described car body control module decoding by once exporting down;
Described test board comprises: microprocessor, signal acquisition module, key decoder module, CAN communication module, key study matching module and memory module.
Wherein, described microprocessor is used to realize the control of computing and whole test process.
Described signal acquisition module is used for described pulse width modulating signal and described decoded result one; The described key decoder module described pulse width modulating signal that is used to decode obtains decoded result two, all exports a response signal five after decoding successfully at every turn; Described signal acquisition module also is used to receive described response signal one, response signal two, response signal three, response signal four, response signal five and carries out accumulated counts respectively.
Described CAN communication module is used for carrying out exchanges data with main frame, the accumulated counts result of each time test result of described response signal one, response signal two, response signal three, response signal four, response signal five, decoded result one, decoded result two and described response signal one, response signal two, response signal three, response signal four, response signal five can be outputed in the main frame by the CAN bus.
Described key study matching module is used to remember and the described key that mates different encryption types automatically.
Described memory module is used to store data, as system software, as described in air pump control program, as described in decoding software, the test result of key decoder module.Described test board comprises polytype decoding software, is respectively applied for the dissimilar key of coupling.The system of described test board can carry out online upgrading by the CAN bus.
It more than is the architectural feature of the embodiment of the invention.The workflow of described test board in actual test process as shown in Figure 1 also is the method for testing of the described remote access control system of automobile of the embodiment of the invention, comprises the steps:
Step 1, by described air pump realize button to the key of described remote access control system of automobile carry out automatically down by, a response signal one is once all exported in the every work of described air pump, described button is successfully worked at every turn and is once all exported a response signal two.
Step 2, described button are pressed successfully down, and back triggering one unlocking signal or closes lock signal, the transmitter module of described remote access control system of automobile is described unlocking signal or to shut conversion of signals be to export behind the pulse width modulating signal, and pulse width modulating signal is also gone out by wireless signal transmission.
Step 3, receive described wireless signal, and after receiving successfully, all export a response signal three at every turn by a radiofrequency signal receiver-indicator.
The car body control module of step 4, described remote access control system of automobile is decoded after receiving described wireless signal and converting described wireless signal to pulse width modulating signal, obtains decoded result one, all exports a response signal four after decoding successfully at every turn.
Step 5, receive described response signal one, response signal two, response signal three, response signal four by a test board; Described test board is received pulse bandwidth modulation signals and decoding also, obtains decoded result two, all exports a response signal five after decoding successfully at every turn.
Whether identical whether and decoded result one and decoded result two identical by contrast response signal one, response signal two, response signal three, response signal four and response signal five judges whether success of this test for step 6, described test board; Described test board also carries out accumulated counts respectively to described response signal one, response signal two, response signal three, response signal four and response signal five.
Step 7, by the automatic control repeating step one to six of described test board to described air pump, through repeatedly obtaining the accumulated counts result of described response signal one, response signal two, response signal three, response signal four and response signal five after the test, the accumulated counts result by more described each response signal analyzes whole test result.
Step 8, the accumulated counts result of each time test result of described response signal one, response signal two, response signal three, response signal four, response signal five, decoded result one, decoded result two and described response signal one, response signal two, response signal three, response signal four, response signal five is outputed in the main frame by the CAN bus.
Once complete as from the foregoing testing process has comprised data transmission procedure and DRP data reception process, wherein step 1 to step 4 is a data transmission procedure, step 5 to step 7 is a DRP data reception process, step 8 is the process of repeated test, and forms test result at last and send to main frame and analyze for the tester.
As described in table, send to the CAN message data content of described main frame by the CAN bus for last described test board, comprise that altogether above-mentioned five response signals are when sub-value and accumulated counts value, wherein the described response signal one to five of the 2nd behavior work as sub-value, described when response is arranged when sub-value is 1, described when not responding to work as sub-value be 0.
The 1st each value of row is respectively the accumulated counts value of the response times of described response signal one to five in the table one, has represented respectively: air pump output number of times, button triggering times, radiofrequency signal receiver-indicator are that the RF receiver receives number of success, BCM response times, test board decoding number of times.Can realize whole testing process is monitored by monitoring, when the response times of described response signal one to five is identical, then test successfully described response signal one to five; Opposite response times when described response signal one to five not simultaneously, then having failure scenario in test process is the remote access control system of automobile existing problems, by more then realizing losing efficacy fast the location to the response times of described response signal one to five.
Table one
| Air pump output number of times | The button triggering times | The RF receiver receives number of success | The BCM response times | Test board decoding number of times |
| Response signal one | Response signal two | Response signal three | Response signal four | Response signal five |
Table two
| ??2184 | ??2182 | ??2181 | ??2181 | ??2181 |
| ??1 | ??1 | ??0 | ??0 | ??0 |
As shown in Table 2, occurrence for the CAN message data content of a test result of the embodiment of the invention, as can be seen, air pump output 2184 times, but the actual triggering times of key button is 2182 times, test board decoding number of times 2181 times, BCM exemplar output number of times 2181 times, it is 2181 times that the RF receiver receives number of success.Current have only air pump working signal and button trigger pip to be " 1 ", and other test signals are invalid " 0 ".From on can infer, the key button has and is not triggered for twice in whole test process, and in 2182 buttons once key do not export any signal, thereby can orient the current place that tests out problem fast is the button of described key, and the transmitter module of described key, described car body control module are all no problem.
More than by specific embodiment the present invention is had been described in detail, but these are not to be construed as limiting the invention.Under the situation that does not break away from the principle of the invention, those skilled in the art also can make many distortion and improvement, and these also should be considered as protection scope of the present invention.
Claims (9)
1. the test board of a remote access control system of automobile, described test board links to each other with a main frame by a CAN bus; Described remote access control system of automobile comprises a tested key and a tested car body control module;
Described key comprises a button and a transmitter module, by triggering unlocking signal or block signal by described button down, exports by wireless signal by described transmitter module formation pulse width modulating signal and with described pulse width modulating signal;
Described car body control module comprises a receiver module and an execution module, receives described wireless signal and decoding by described receiver module, obtains decoded result one;
It is characterized in that described test board comprises: a test board, an air pump, a radiofrequency signal receiver-indicator; Described test board is connected with described air pump, described radiofrequency signal receiver-indicator, described key and described car body control module rigid line respectively;
Described air pump and described button are corresponding to be provided with, and is used for automatically down by described button, and described air pump action is subjected to the control of described test board; Described radiofrequency signal receiver-indicator is used to receive described wireless signal; A response signal one, described button are once exported in the every action of described air pump, and every a response signal two, described radiofrequency signal receiver-indicator are every to receive successfully that described wireless signal is once exported a response signal three, a response signal four is once exported in the every successfully decoding of described car body control module decoding by once exporting down;
Described test board comprises: microprocessor, signal acquisition module, key decoder module, CAN communication module, key study matching module and memory module; Wherein said microprocessor is used to realize the control of computing and whole test process; Described signal acquisition module is used for described pulse width modulating signal and described decoded result one; The described key decoder module described pulse width modulating signal that is used to decode obtains decoded result two, all exports a response signal five after decoding successfully at every turn; Described signal acquisition module also is used to receive described response signal one, response signal two, response signal three, response signal four, response signal five and carries out accumulated counts respectively; Described CAN communication module is used for carrying out exchanges data with main frame; Described key study matching module is used to remember and the described key that mates different encryption types automatically; Described memory module is used to store data, as system software, as described in air pump control program, as described in decoding software, the test result of key decoder module.
2. the test board of remote access control system of automobile according to claim 1, it is characterized in that: described test board comprises polytype decoding software, is respectively applied for the dissimilar key of coupling.
3. the test board of remote access control system of automobile according to claim 1, it is characterized in that: the system of described test board can carry out online upgrading by the CAN bus.
4. the test board of remote access control system of automobile according to claim 1, it is characterized in that: described test board is installed in the test box of a complete closed.
5. the method for testing of a remote access control system of automobile is characterized in that, comprises the steps:
Step 1, by an air pump realize button to the key of described remote access control system of automobile carry out automatically down by, a response signal one is once all exported in the every work of described air pump, described button is successfully worked at every turn and is once all exported a response signal two;
Step 2, described button are pressed successfully down, and back triggering one unlocking signal or closes lock signal, the transmitter module of described remote access control system of automobile is described unlocking signal or to shut conversion of signals be to export behind the pulse width modulating signal, and pulse width modulating signal is also gone out by wireless signal transmission;
Step 3, receive described wireless signal, and after receiving successfully, all export a response signal three at every turn by a radiofrequency signal receiver-indicator;
The car body control module of step 4, described remote access control system of automobile is decoded after receiving described wireless signal and converting described wireless signal to pulse width modulating signal, obtains decoded result one, all exports a response signal four after decoding successfully at every turn;
Step 5, receive described response signal one, response signal two, response signal three, response signal four by a test board; Described test board is received pulse bandwidth modulation signals and decoding also, obtains decoded result two, all exports a response signal five after decoding successfully at every turn;
Whether identical whether and decoded result one and decoded result two identical by contrast response signal one, response signal two, response signal three, response signal four and response signal five judges whether success of this test for step 6, described test board; Described test board also carries out accumulated counts respectively to described response signal one, response signal two, response signal three, response signal four and response signal five;
Step 7, by the automatic control repeating step one to six of described test board to described air pump, through repeatedly obtaining the accumulated counts result of described response signal one, response signal two, response signal three, response signal four and response signal five after the test, the accumulated counts result by more described each response signal analyzes whole test result.
6. the method for testing of remote access control system of automobile as claimed in claim 5 is characterized in that: also comprise step 8, the accumulated counts result of each time test result of described response signal one, response signal two, response signal three, response signal four, response signal five, decoded result one, decoded result two and described response signal one, response signal two, response signal three, response signal four, response signal five is outputed in the main frame by the CAN bus.
7. the method for testing of remote access control system of automobile as claimed in claim 5, it is characterized in that: described test board is connected with described air pump, described radiofrequency signal receiver-indicator, described key and described car body control module rigid line respectively, described test board comprises: microprocessor, signal acquisition module, the key decoder module, the CAN communication module, key study matching module and memory module; Wherein said microprocessor is used to realize the control of computing and whole test process; Described signal acquisition module is used to receive described pulse width modulating signal, each described response signal and described decoded result one; The described key decoder module described pulse width modulating signal that is used to decode; Described CAN communication module is used for carrying out exchanges data with main frame; Described key study matching module is used to remember and the described key that mates different encryption types automatically; Described memory module is used to store data, as system software, as described in air pump control program, as described in decoding software, the test result of key decoder module.
8. the method for testing of remote access control system of automobile as claimed in claim 7, it is characterized in that: described test board comprises polytype decoding software, is respectively applied for the dissimilar key of coupling.
9. the method for testing of remote access control system of automobile as claimed in claim 7, it is characterized in that: the system of described test board can carry out online upgrading by the CAN bus.
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