CN103389419A - Sleep wake-up test device of vehicle-mounted system - Google Patents
Sleep wake-up test device of vehicle-mounted system Download PDFInfo
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- CN103389419A CN103389419A CN2012101447085A CN201210144708A CN103389419A CN 103389419 A CN103389419 A CN 103389419A CN 2012101447085 A CN2012101447085 A CN 2012101447085A CN 201210144708 A CN201210144708 A CN 201210144708A CN 103389419 A CN103389419 A CN 103389419A
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Abstract
The invention provides a sleep wake-up test device of a vehicle-mounted system. The sleep wake-up test device of the vehicle-mounted system comprises a control module and one or more automatic test passages connected with the control module, wherein the control module generates corresponding control signals according to a preset control command, and under the control of the control signals, the automatic test passages are switched to and connected to a work/stand-by state of the vehicle-mounted system to be tested and detect the work current and the stand-by current of the vehicle-mounted system to be tested. The sleep wake-up test device of the vehicle-mounted system can improve the test efficiency of the vehicle-mounted system, shortens the testing time, and improves test accuracy.
Description
Technical field
The present invention relates to the measuring technology of onboard system, relate in particular to a kind of sleep awakening proving installation of onboard system.
Background technology
The at present application of onboard system is more and more extensive, and product function also becomes increasingly complex, and along with the continuous expansion of automobile usable range, its corresponding environment for use also becomes increasingly complex, thereby the client is also more and more higher to the quality requirements of automobile and onboard system.
In prior art, onboard system is connected with the vehicle power on car usually, is in all the time power supply state, just at automobile starting/while stopping, by work/Opportunity awaiting control for linear signal (ACC ON/OFF) accordingly, controlling.Due to the complicacy of product and the impact of environment; may cause at automobile starting/while stopping; onboard system can't normally wake up or standby, even perhaps enter holding state but standby current is excessive, and the continuous electric power of battery consumption and cause automobile normally to start.
In order to improve the reliability of onboard system, the user who improves product experiences, in the processes such as research and development, production, need to test onboard system, to test its whether normally standby under work/Opportunity awaiting control for linear signal, to wake up, thereby guarantee that product can work, can not lose efficacy within serviceable life.
The test process of prior art, the same time can only test an equipment under test usually, testing efficiency is low, for example under the test sight of minimum 3 samples, for analog equipment contingent repeatedly standby and waking up in serviceable life, may need the time of several months, and can't the Real Time Monitoring abnormal conditions in test process, the accuracy of testing efficiency and test affected.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of sleep awakening proving installation of onboard system, can improve the testing efficiency of onboard system, reduces the test duration.
For solving the problems of the technologies described above, the invention provides a kind of sleep awakening proving installation of onboard system, comprising:
Control module, produce corresponding control signal according to default steering order;
The one or more automatic test channel that is connected with described control module, under the control of described control signal, switching is connected to the work/holding state of the onboard system to be measured of described automatic test channel, and detects working current and the standby current of described onboard system to be measured.
Alternatively, wherein each automatic test channel comprises:
Work/standby handover module, under the control of described control signal, provide work/Opportunity awaiting control for linear signal to described onboard system to be measured;
Current detection module,, to described onboard system power supply to be measured, detect working current and the standby current of described onboard system to be measured under the control of described control signal.
Alternatively, described work/standby handover module comprises:
Work/Opportunity awaiting control for linear signal input part, receive outside work/Opportunity awaiting control for linear signal;
Work/Opportunity awaiting control for linear signal output part, be connected with described onboard system to be measured;
The first gate-controlled switch, its input end is connected with described work/Opportunity awaiting control for linear signal input part, and its output terminal is connected with described work/Opportunity awaiting control for linear signal output part;
The first switch control module, be connected with the control end of described the first gate-controlled switch, according to the ON/OFF state of described the first gate-controlled switch of described control signal switching.
Alternatively, described current detection module comprises:
The power supply signal input end, receive outside power supply signal;
The power supply signal output terminal, be connected with described onboard system to be measured;
The second gate-controlled switch, its input end is connected with described power supply signal input end;
The working current sample resistance, its first end is connected with the output terminal of described the second gate-controlled switch, and its second end is connected with described power supply signal output terminal;
The 3rd gate-controlled switch, its input end is connected with described power supply signal input end;
The standby current sample resistance, its first end is connected with the output terminal of described the 3rd gate-controlled switch, and its second end is connected with described power supply signal output terminal, and the resistance value of described standby current sample resistance is greater than the resistance value of described working current sample resistance;
The second switch control module, be connected with the control end of the 3rd gate-controlled switch with described the second gate-controlled switch, under the control of described control module, when described onboard system to be measured switches to duty, control described the second gate-controlled switch conducting and control described the 3rd gate-controlled switch and turn-off, when described onboard system to be measured switches to holding state, control described the second gate-controlled switch and turn-off and control described the 3rd gate-controlled switch conducting;
Current measurement module, measure the magnitude of voltage of described working current sample resistance and standby current sample resistance and be converted into current value.
Alternatively, described current detection module also comprises:
The 4th gate-controlled switch, its input end is connected with described power supply signal input end, and its output terminal is connected with described power supply signal output terminal, and its control end is connected with described second switch control module;
Described second switch control module is under the control of described control module, when described onboard system to be measured switches to duty from holding state, at first control described the 3rd gate-controlled switch shutoff, the 4th gate-controlled switch conducting, control afterwards described the 4th gate-controlled switch shutoff, the second gate-controlled switch conducting; When described onboard system to be measured switches to holding state from duty, at first control described the second gate-controlled switch shutoff, the 4th gate-controlled switch conducting, control afterwards described the 4th gate-controlled switch shutoff, the 3rd gate-controlled switch conducting.
Alternatively, described proving installation also comprises: power module, and for generation of described power supply signal.
Alternatively, described control module comprises:
Work/standby switching controls submodule, be connected and it controlled with described work/standby handover module;
Current detecting is controlled submodule, with described current detection module, is connected and it is controlled.
Alternatively, described control module also comprises:
Record sub module, control submodule with described current detecting and be connected, and obtains working current and the standby current of described onboard system to be measured and it is carried out record.
Alternatively, the content of described record sub module record comprises: the device numbering of described onboard system to be measured and working current thereof and standby current.
Alternatively, described control module also comprises:
Display sub-module, the content that described record sub module is recorded shows.
Alternatively, described control module also comprises:
Decision sub-module, compare to determine test result with the working current of described onboard system to be measured and standby current and default normalized current.
Compared with prior art, the present invention has the following advantages:
The sleep awakening proving installation of the onboard system of the embodiment of the present invention comprises one or more automatic test channel, control module can produce corresponding control signal according to default steering order, and control the work/holding state of each automatic test channel switching onboard system to be measured, to detect working current and the standby current under corresponding states.Wherein, the user can set the work of each automatic test channel/parameters such as holding state switching cycle index in steering order, thereby can make the sleep awakening proving installation to carry out concurrently automatic test to many onboard systems to be measured.
Further, the sleep awakening proving installation of the onboard system of the embodiment of the present invention can also record, compare judgement to working current and the standby current that records, and is convenient in time investigation and finds out fault.
Description of drawings
Fig. 1 is the general structure block diagram of sleep awakening proving installation of the onboard system of the embodiment of the present invention;
Fig. 2 is the structured flowchart of the interior work of the automatic test channel in Fig. 1/standby handover module;
Fig. 3 is the structured flowchart of the interior current detection module of the automatic test channel in Fig. 1;
Fig. 4 is the detailed block diagram of the control module in Fig. 1.
Embodiment
The invention will be further described below in conjunction with specific embodiments and the drawings, but should not limit the scope of the invention with this.
Fig. 1 shows the general structure block diagram of sleep awakening proving installation of the onboard system of the present embodiment, comprising: control module 11 produces corresponding control signal according to default steering order; The one or more automatic test channel 12 that is connected with control module 11, under the control of this control signal, switching is connected to the work/holding state of the onboard system to be measured 13 of automatic test channel 12, and detects working current and the standby current of this onboard system 13 to be measured.In addition, the sleep awakening proving installation of the present embodiment can also comprise the power module (not shown), for generation of the power supply signal that offers onboard system 13 to be measured.
In one embodiment, the user can be by software programming, the modes such as flash memory writes are carried out the setup control instruction, thereby determine that automatic test channel 12 is to the switching times of the work/holding state of each onboard system 13 to be measured, the parameters such as standard value of work/standby current, control module 11 will be converted to corresponding control signal for the steering order of setting, and control each automatic test channel 12 and test.
In the present embodiment, the steering order in control module 11 can be independently to different automatic test channel 12, and namely different automatic test channel 12 can be set different test parameters.Certainly, those skilled in the art also should be appreciated that in other specific embodiments, and control module 11 also can be controlled each automatic test channel 12 synchronous workings, and namely different automatic test channel 12 can be set identical test parameter.
Need to prove, Fig. 1 is only a nonrestrictive example, and wherein automatically the quantity of test channel 12 is 3, and in other specific embodiments, its quantity can be adjusted according to actual needs, as 4,5 etc.
Wherein, each automatic test channel 12 comprises: work/standby handover module, be connected with control module 11, and under the control of the control signal of its generation, to onboard system 13 to be measured, provide work/Opportunity awaiting control for linear signal; Current detection module,, to onboard system 13 power supplies to be measured, under the control of control module 11, detect its working current when onboard system 13 to be measured is in running order, detect its standby current when onboard system 13 to be measured is in holding state.Be elaborated below with reference to Fig. 2 and Fig. 3.
With reference to figure 2, Fig. 2 shows the structured flowchart of work in automatic test channel/standby handover module 14, comprising: work/Opportunity awaiting control for linear signal input part 141 receives outside work/Opportunity awaiting control for linear signal; Work/Opportunity awaiting control for linear signal output part 142, be connected with onboard system to be measured; The first gate-controlled switch 143, its input end is connected with work/Opportunity awaiting control for linear signal input part 141, and its output terminal is connected with work/Opportunity awaiting control for linear signal output part 142; The first switch control module 144, be connected with the control end of the first gate-controlled switch 143, according to the ON/OFF state of control signal switching the first gate-controlled switch 143.
Wherein, work/Opportunity awaiting control for linear signal is used for simulated automotive and enters the signal of work/holding state for the control onboard system, can be produced by various signal generators of the prior art.
As a nonrestrictive example, the first gate-controlled switch 143 is relay in the present embodiment, by the first switch control module 144, controls its ON/OFF state.Correspondingly, the first switch control module 144 specifically can comprise for the relay driver 144a that relay is controlled, and the analog to digital converter 144b that is connected with relay driver 144a, this analog to digital converter 144b carries out analog to digital conversion to the control signal from control module, adopt the control signal after changing to drive relay driver 144a, and then the turn-on and turn-off of pilot relay.
With reference to figure 3, Fig. 3 shows the detailed block diagram of the current detection module 15 in the automatic test channel of the present embodiment, comprising: power supply signal input end 151 receives outside power supply signal; Power supply signal output terminal 152, be connected with onboard system to be measured; The second gate-controlled switch 153, its input end is connected with power supply signal input end 151; Working current sample resistance 156, its first end is connected with the output terminal of the second gate-controlled switch 153, and its second end is connected with power supply signal output terminal 152; The 3rd gate-controlled switch 154, its input end is connected with power supply signal input end 151; Standby current sample resistance 157, its first end is connected with the output terminal of the 3rd gate-controlled switch 154, and its second end is connected with power supply signal output terminal 152, and the resistance value of standby current sample resistance 157 is greater than the resistance value of working current sample resistance 156; Second switch control module 158, be connected with the control end of the 3rd gate-controlled switch 154 with the second gate-controlled switch 153, under the control of control module (being the control module 11 in Fig. 1), when onboard system to be measured switches to duty, control the second gate-controlled switch 153 conductings and control the 3rd gate-controlled switch 154 and turn-off, when onboard system to be measured switches to holding state, control the second gate-controlled switch 153 and turn-off and control the 3rd gate-controlled switch 154 conductings; Current measurement module 159, the magnitude of voltage of surveying work current sampling resistor 156 and standby current sample resistance 157 also is converted into corresponding current value.
As a preferred embodiment, current detection module 15 in the present embodiment also comprises the 4th gate-controlled switch 155, its input end is connected with power supply signal input end 151, and its output terminal is connected with power supply signal output terminal 152, and its control end is connected with second switch control module 158; Second switch control module 158 is under the control of control module, when onboard system to be measured switches to duty from holding state, at first control the 3rd gate-controlled switch 154 shutoffs, the 4th gate-controlled switch 155 conductings, control afterwards the 4th gate-controlled switch and turn-off the 155, second gate-controlled switch 153 conductings; When onboard system to be measured switches to holding state from duty, at first control the second gate-controlled switch 153 shutoffs, the 4th gate-controlled switch 155 conductings, control afterwards the 4th gate-controlled switch 155 shutoffs, the 3rd gate-controlled switch 154 conductings.
The 4th gate-controlled switch 155 carries out the state switching and the time can play transitional function treating the measuring car loading system, keeps continuity.Certainly, in other specific embodiments, the 4th gate-controlled switch 155 also can omit.
Wherein, the power supply signal that power supply signal input end 151 receives can perhaps also can come from outside supply module from the power module of proving installation inside, is used for to mobile unit power supply to be measured.
The second gate-controlled switch 153, the 3rd gate-controlled switch 154 and the 4th gate-controlled switch 155 also can adopt relay to realize in the present embodiment, correspondingly, can comprise the parts such as required relay driver, digital to analog converter in second switch control module 158, with from the control module reception control signal, and according to the on off state of this control signal transfer relay.
When onboard system to be measured switches to duty (by the work in Fig. 2/standby handover module 14), the second gate-controlled switch 153 conductings, working current flows into mobile unit to be measured via power supply signal input end 151, the second gate-controlled switch 153, working current sample resistance 156 and power supply signal output terminal 152 successively, current measurement module 159, by the voltage at surveying work current sampling resistor 156 two ends, can be converted into according to the resistance value of working current sample resistance 156 corresponding working current.
Similarly, when onboard system to be measured switches to holding state (by the work in Fig. 2/standby handover module 14), the 3rd gate-controlled switch 154 conductings, working current flows into mobile unit to be measured via power supply signal input end 151, the 3rd gate-controlled switch 154, standby current sample resistance 157 and power supply signal output terminal 152 successively, current measurement module 159, by measuring the voltage at standby current sample resistance 157 two ends, can be converted into according to the resistance value of standby current sample resistance 157 corresponding working current.
Usually, standby current is compared much smaller with working current, for example standby current is generally a milliampere rank, and working current is the ampere rank, thereby in order to improve the degree of accuracy of test, the resistance value of standby current sample resistance 157 is larger than the resistance value of working current sample resistance 156, and for example the multiple of resistance value can be hundreds of times to thousands of times, amplify with the voltage to standby current sample resistance 157 two ends, improve measuring accuracy.
Fig. 4 shows the structured flowchart of the control module 11 in the proving installation of the present embodiment, comprise: work/standby switching controls submodule 111, be connected (for example, can be connected with the first switch control module 144 in Fig. 2) and it is controlled with work in Fig. 2/standby handover module 14; Current detecting is controlled submodule 112, be connected with the current detection module 15 in Fig. 3 (for example, can with Fig. 3 in the aerial module 158 of second switch be connected with current measurement module 159) and it is controlled; Record sub module 113, control submodule 112 with current detecting and be connected, and by the current measurement module 159 in Fig. 2, obtains working current and the standby current of onboard system to be measured and it is carried out record; Display sub-module 114, show the content of record sub module 113; Decision sub-module 115, compare to determine test result with the working current of onboard system to be measured and standby current and default normalized current.
Wherein, record sub module record 113 contents that record can comprise the data such as the device numbering, working current, standby current of the mobile unit to be measured that this automatic test channel connects, and the file layout of record can be TXT form or other suitable file layouts.The frequency of the data of record sub module 113 records and current detecting are controlled submodule 112 and are obtained the frequency dependence of working current and standby current, and in the present embodiment, the frequency of obtaining of electric current can be optional in 0.1Hz ~ 1Hz scope.
Still with reference to figure 1, in one embodiment, control module 11 can adopt personal computer (PC) to realize, automatically test channel 12 can adopt the mode such as programmable logic device (PLD) to realize, carries out the mutual of data by suitable interfaces such as USB interface between both.Certainly, it will be appreciated by those skilled in the art that in other specific embodiments, control module 11 also can adopt the embedded system with memory storage, display device, treating apparatus to realize.
To sum up, the proving installation of the present embodiment can be tested one or more mobile units, and whole test process is automatically to complete according to default steering order, can significantly improve testing efficiency, improves the accuracy of test.
Although the present invention with preferred embodiment openly as above; but it is not to limit the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; can make possible change and modification, so protection scope of the present invention should be as the criterion with the scope that the claims in the present invention were defined.
Claims (11)
1. the sleep awakening proving installation of an onboard system, is characterized in that, comprising:
Control module, produce corresponding control signal according to default steering order;
The one or more automatic test channel that is connected with described control module, under the control of described control signal, switching is connected to the work/holding state of the onboard system to be measured of described automatic test channel, and detects working current and the standby current of described onboard system to be measured.
2. the sleep awakening proving installation of onboard system according to claim 1, is characterized in that, wherein each automatic test channel comprises:
Work/standby handover module, under the control of described control signal, provide work/Opportunity awaiting control for linear signal to described onboard system to be measured;
Current detection module,, to described onboard system power supply to be measured, detect working current and the standby current of described onboard system to be measured under the control of described control signal.
3. the sleep awakening proving installation of onboard system according to claim 2, is characterized in that, described work/standby handover module comprises:
Work/Opportunity awaiting control for linear signal input part, receive outside work/Opportunity awaiting control for linear signal;
Work/Opportunity awaiting control for linear signal output part, be connected with described onboard system to be measured;
The first gate-controlled switch, its input end is connected with described work/Opportunity awaiting control for linear signal input part, and its output terminal is connected with described work/Opportunity awaiting control for linear signal output part;
The first switch control module, be connected with the control end of described the first gate-controlled switch, according to the ON/OFF state of described the first gate-controlled switch of described control signal switching.
4. the sleep awakening proving installation of onboard system according to claim 2, is characterized in that, described current detection module comprises:
The power supply signal input end, receive outside power supply signal;
The power supply signal output terminal, be connected with described onboard system to be measured;
The second gate-controlled switch, its input end is connected with described power supply signal input end;
The working current sample resistance, its first end is connected with the output terminal of described the second gate-controlled switch, and its second end is connected with described power supply signal output terminal;
The 3rd gate-controlled switch, its input end is connected with described power supply signal input end;
The standby current sample resistance, its first end is connected with the output terminal of described the 3rd gate-controlled switch, and its second end is connected with described power supply signal output terminal, and the resistance value of described standby current sample resistance is greater than the resistance value of described working current sample resistance;
The second switch control module, be connected with the control end of the 3rd gate-controlled switch with described the second gate-controlled switch, under the control of described control module, when described onboard system to be measured switches to duty, control described the second gate-controlled switch conducting and control described the 3rd gate-controlled switch and turn-off, when described onboard system to be measured switches to holding state, control described the second gate-controlled switch and turn-off and control described the 3rd gate-controlled switch conducting;
Current measurement module, measure the magnitude of voltage of described working current sample resistance and standby current sample resistance and be converted into current value.
5. the sleep awakening proving installation of onboard system according to claim 4, is characterized in that, described current detection module also comprises:
The 4th gate-controlled switch, its input end is connected with described power supply signal input end, and its output terminal is connected with described power supply signal output terminal, and its control end is connected with described second switch control module;
Described second switch control module is under the control of described control module, when described onboard system to be measured switches to duty from holding state, at first control described the 3rd gate-controlled switch shutoff, the 4th gate-controlled switch conducting, control afterwards described the 4th gate-controlled switch shutoff, the second gate-controlled switch conducting; When described onboard system to be measured switches to holding state from duty, at first control described the second gate-controlled switch shutoff, the 4th gate-controlled switch conducting, control afterwards described the 4th gate-controlled switch shutoff, the 3rd gate-controlled switch conducting.
6. the sleep awakening proving installation of according to claim 4 or 5 described onboard systems, is characterized in that, also comprises:
Power module, for generation of described power supply signal.
7. the sleep awakening proving installation of onboard system according to claim 2, is characterized in that, described control module comprises:
Work/standby switching controls submodule, be connected and it controlled with described work/standby handover module;
Current detecting is controlled submodule, with described current detection module, is connected and it is controlled.
8. the sleep awakening proving installation of onboard system according to claim 7, is characterized in that, described control module also comprises:
Record sub module, control submodule with described current detecting and be connected, and obtains working current and the standby current of described onboard system to be measured and it is carried out record.
9. the sleep awakening proving installation of onboard system according to claim 8, is characterized in that, the content of described record sub module record comprises: the device numbering of described onboard system to be measured and working current thereof and standby current.
10. according to claim 8 or claim 9 the sleep awakening proving installation of onboard system, is characterized in that, described control module also comprises:
Display sub-module, the content that described record sub module is recorded shows.
11. the sleep awakening proving installation of onboard system according to claim 7, is characterized in that, described control module also comprises:
Decision sub-module, compare to determine test result with the working current of described onboard system to be measured and standby current and default normalized current.
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| CN103389419B (en) | 2017-07-18 |
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