CN201637771U - Test box and test system - Google Patents
Test box and test system Download PDFInfo
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- CN201637771U CN201637771U CN2009202447993U CN200920244799U CN201637771U CN 201637771 U CN201637771 U CN 201637771U CN 2009202447993 U CN2009202447993 U CN 2009202447993U CN 200920244799 U CN200920244799 U CN 200920244799U CN 201637771 U CN201637771 U CN 201637771U
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Abstract
The utility model provides a test box which comprises a box body, wherein the box body internally comprises a power module used for converting 220V alternating voltage into 24V direct voltage; the box body comprises a plurality of output interfaces and a controller local network interface, wherein the output interfaces are electrically connected with the power module and electrically with all digital quantity input channel signal interfaces of tested modules respectively, and the controller local network interface is connected with the tested modules by a controller local network bus and used for receiving input control signals output by the tested modules; and the box body also internally comprises a gateway module which is connected with the power module and the controller local network interface, and used for obtaining the input control signals by the controller local network interface, converting the input control signals into computer detection signals according to protocol, and outputting the computer detection signals to a computer provided with testing software by a computer interface on the box body. The utility model simultaneously provides another two test boxes. The test box has simple operation, convenient use, good stability and high testing efficiency.
Description
Technical field
The utility model embodiment relates to measuring technology, relates in particular to a kind of test box and test macro.
Background technology
Along with the popularization of the growing and electric locomotive of electric locomotive technology, be used for digital quantity input (the Digital input that digital quantity is gathered; Hereinafter to be referred as DI) module and digital quantity output (the Digital output that is used to send digital control instruction; Hereinafter to be referred as DO) module is also large batch of is applied in the electric locomotive; They can be collectively referred to as DI/O module (expression DI module or DO module).The integrity of DI/O module is directly determining the security of electric locomotive.
In view of the importance of DI/O module, the DI/O module of producing need be through strict test.The DI/O module comprises multichannel DI or DO passage, and each road signal is separate.In order to make the DI/O module satisfy designed functional requirement, every paths of DI/O module all need be through test.The method of testing of each paths of existing DI/O module need provide reference power supply, some test leads, module jointing, multimeter usually, accompany examination gateway or the like element, the element of by test lead all tests being used by the professional and technical personnel couples together, and finishes building of measurement circuit.Realize test respectively by the measurement circuit of building to each paths of DI/O module.
By foregoing description as can be known, existing to the DI/O module testing, need the professional and technical personnel to carry out complicated circuit usually and build, whole process wastes time and energy; And the external circuit instability, causing the test result mistake through regular meeting, testing efficiency is very low.
The utility model content
The utility model embodiment provides a kind of test box and test macro, and in order to solving DI/O module test method complexity in the prior art, the defective that testing efficiency is low provides a kind of test box and test macro of integrated form; Realization is to the convenient test of each paths of DI/O module.
The utility model embodiment provides a kind of test box, comprises a casing,
Comprise in the described casing:
Power module is used for converting the 220V alternating voltage to the 24V DC voltage;
Comprise on the described casing:
Several output interfaces, be electrically connected with described power module, and be electrically connected with each digital quantity input channel signal interface of tested module respectively, in order to provide 24V voltage signal to the digital quantity input channel of described tested module correspondence by described digital quantity input channel signal interface;
The controller area network interface is connected with described tested module by controller area network bus, is used to receive described input control signal described tested module output, that pass through described controller area network bus transmission;
Also comprise in the described casing:
Gateway module, be connected with described controller area network interface with described power module, be used for obtaining described input control signal by described controller area network interface, and be the COMPUTER DETECTION signal according to protocol conversion, and export described COMPUTER DETECTION signal to computing machine by the computer interface on the described casing with described input control signal.
Aforesaid test box, described casing are provided with several digital quantity input gauge tap, and described several digital quantity input gauge tap are electrically connected between described several output interfaces and the described power module.
Aforesaid test box, described casing are provided with voltage table and voltage-regulation knob; Described voltage table is electrically connected with described power module, is used to test described power module output voltage; Described voltage-regulation knob is electrically connected with described power module, is used for the output voltage according to the described power module of voltage-regulation of described voltage table demonstration.
Aforesaid test box also is provided with power switch on the described casing, described power switch is electrically connected with described power module, is used to control opening or closing of described power module.
The utility model embodiment also provides a kind of test box, comprises a casing,
Comprise in the described casing:
Power module is used for converting the 220V alternating voltage to the 24V DC voltage;
Gateway module is electrically connected with described power module; And obtain the computer control signal of computing machine output by the computer interface on the described casing, and described computer control signal is the output control signal according to protocol conversion;
Comprise on the described casing:
Computer interface controller area network interface is electrically connected with described gateway module and described tested module respectively, is used to obtain described output control signal, and by controller area network bus described output control signal is transferred to described tested module;
Several input interfaces are electrically connected with each digital quantity output channel signaling interface of described tested module respectively, are used for obtaining voltage signal from the digital quantity output channel of described tested module;
The test display unit, the negative electricity with described several input interfaces and described power module is connected respectively; By the described voltage signal that obtains from described several input interfaces to show test results.
Aforesaid test box, described test display unit are several pilot lamp that are arranged on the described casing, described several pilot lamp one ends be electrically connected with described several input interfaces respectively, the other end is connected with the negative electricity of described power module respectively;
Perhaps described test display unit is several digital quantity output terminals and a Voltage Reference end that is arranged on the casing; Described several digital quantity output terminals are electrically connected with described several input interfaces respectively, and described Voltage Reference end is connected with the negative electricity of described power module.
Aforesaid test box, described casing are provided with voltage table and voltage-regulation knob; Described voltage table is electrically connected with described power module, is used to test the output voltage of described power module; Described voltage-regulation knob is electrically connected with described power module, is used for the output voltage according to the described power module of voltage-regulation of described voltage table demonstration.
Aforesaid test box also is provided with power switch on the described casing, described power switch is electrically connected with described power module, is used to control opening or closing of power module.
The utility model embodiment also provides a kind of test box, comprises a casing,
Comprise in the described casing:
Power module is used for converting the 220V alternating voltage to the 24V DC voltage;
Gateway module, be connected with controller area network interface on the described casing with described power module, be used for obtaining described input control signal by described controller area network interface, and be the COMPUTER DETECTION signal according to protocol conversion, and export described COMPUTER DETECTION signal to computing machine by the computer interface on the described casing with described input control signal;
Described gateway module also is used for obtaining by the computer interface on the described casing computer control signal of computing machine output, and described computer control signal is the output control signal according to protocol conversion;
Comprise on the described casing:
Several output interfaces, be electrically connected with described power module, and be electrically connected with each digital quantity input channel signal interface of tested module respectively, in order to provide 24V voltage signal to the digital quantity input channel of described tested module correspondence by described digital quantity input channel signal interface;
Described controller area network interface is used for being connected with described tested module by controller area network bus, is used to receive described input control signal described tested module output, that pass through described controller area network bus transmission;
Described controller area network interface also is electrically connected with described gateway module, is used to obtain described output control signal, and by controller area network bus described output control signal is transferred to described tested module;
Several input interfaces are electrically connected with each digital quantity output channel signaling interface of described tested module respectively, are used for obtaining voltage signal from the digital quantity output channel of described tested module;
The test display unit, the negative electricity with described several input interfaces and described power module is connected respectively; By the described voltage signal that obtains from described several input interfaces to show test results.
The utility model embodiment also provides a kind of test macro, comprises as above arbitrary described test box, also comprises a computing machine, and described computing machine is connected by signal wire with described test box.
The test box of the utility model embodiment and test macro, by the test box of an integrated form is set, by controller area network interface and the tested DI/O module communication that is provided with on the casing, by computer interface and the compunication that is provided with on the casing, during test, with the corresponding interface butt joint, just can realize test to tested DI/O module channels.Changed when testing in the prior art, need build circuit temporarily, wasted time and energy and the problem of inefficiency, realized by of the convenient test of integrated form test box to tested module.The test box of the utility model embodiment is simple to operate, easy to use, good stability, testing efficiency height.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of a kind of test box that Fig. 1 provides for the utility model embodiment one;
The structural representation of the another kind of test box that Fig. 2 provides for the utility model embodiment one;
The structural representation of a kind of test box that Fig. 3 provides for the utility model embodiment two;
The structural representation of the another kind of test box that Fig. 4 provides for the utility model embodiment two;
The structural representation of a kind of test box that Fig. 5 provides for the utility model embodiment three;
The structural representation of the another kind of test box that Fig. 6 provides for the utility model embodiment three;
Fig. 7 is the top panel synoptic diagram of a kind of test box of the utility model embodiment;
Fig. 8 is the front panel synoptic diagram of a kind of test box of the utility model embodiment;
Fig. 9 is the rear panel synoptic diagram of a kind of test box of the utility model embodiment;
The structural representation of the test macro that Figure 10 provides for the utility model embodiment four.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing among the utility model embodiment, technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment is integrated in all circuits in the test box by integration mode, and controller area network interface and computer interface by being provided with on the casing, respectively with tested DI/O module and compunication, realization is to the test of the integrity of tested DI/O module channels, stability that can intensifier circuit.
The structural representation of a kind of test box that Fig. 1 provides for the utility model embodiment one; Present embodiment describes the technical scheme of present embodiment in detail for the DI module with the tested module.
As shown in Figure 1, the test box of present embodiment comprises a casing 10, comprises in the casing 10: power module 11 and gateway module 12; Comprise on the casing 10: several output interfaces 13 and controller area network (CONTROLLER AREA NETWORK; Hereinafter to be referred as CAN) interface 14.
Wherein power module 11 is used for converting the 220V alternating voltage to the 24V DC voltage.
Particularly, energized, several output interfaces 13 are imported the voltage signal of 24V respectively to each DI passage of tested DI module.Tested DI module receives all channel signals by each DI channel signal interface, and through handling to be converted into input control signal be the output of CAN signal, described input control signal transfers to the gateway module 12 that places in the casing through the CAN interface 14 that is provided with on the casing 10.Gateway module 12 is the COMPUTER DETECTION signal with described input control signal according to protocol conversion, and the computer interface 15 that on casing 10, is provided with, give the computing machine that testing software is installed by signal wire transmits with the COMPUTER DETECTION signal, described computing machine carries out treatment conversion with described COMPUTER DETECTION signal and becomes steering order, with the situation of each road DI passage of the above tested DI module of interface of control testing software.When a certain paths of DI module is good, be reflected on the interface of testing software, can receive steering order; When a certain paths fault of DI module, be reflected on the interface of testing software, do not receive any steering order.Signals transmission is deferred to the agreement of signal specific transmission, at the voltage signal of tested DI module one side by this paths output, the steering order that on the software interface of computing machine one side, converts by the interface receiving computer detection signal of this paths correspondence, like this by judging that interface corresponding with each paths on the software interface receives the state of steering order, just can judge the kilter of each road DI passage.
The test box that present embodiment provides adopts institute's main line is integrated in test box inside.During test, corresponding respectively the linking to each other with computing machine with tested DI module of interface that is provided with on the test box can be realized test; Non-specialized-technical personnel through simple training can simply finish test, and operation is very easy.And the test box of present embodiment, circuit is stable; Can improve testing efficiency greatly.The test box of present embodiment can also be supported simultaneously the multiplexer channel of DI module to be tested, and also can test in batches, has very strong dirigibility and practicality.
The structural representation of the another kind of test box that Fig. 2 provides for the utility model embodiment one.Above-mentioned embodiment shown in Figure 1, when measuring the input channel of DI module, each output interface is electrically connected with one road digital quantity input channel signal interface of tested DI module, just this paths to the DI module sends test massage, the operation of this direct electrical connection is very inconvenient, nor safety, as shown in Figure 2, several digital quantity input gauge tap (also can be referred to as the DI switch) 16 can be set on casing 10 usually, and several digital quantity input gauge tap 16 are electrically connected between several output interfaces 13 and the power module 11; Each digital quantity input gauge tap is electrically connected with a corresponding output interface in casing 10, and each digital quantity input gauge tap other end is electrically connected with power module 11.Like this, the connection that can import gauge tap control power supply by digital quantity is with closed, whether sends the test voltage signal of 24V to a certain paths of DI module with further control.The opening state of digital quantity input gauge tap, the expression energized is connected moment, just sends the test voltage signal of 24V to the corresponding input channel of DI module by output interface.Several digital quantities input gauge tap 16 can independent operation, so that measure a certain road input signal channel of DI module, also can operate the input multiplexer of measuring the DI module simultaneously together.
As shown in Figure 2, can also on the casing 10 voltage table 17 and voltage-regulation knob 18 be set.The input of power module 11 generally is also unstable, can slightly depart from 24V usually, the effect that influence is measured.Be provided with on casing 10 after voltage table 17 and the voltage-regulation knob 18, voltage table 17 is electrically connected with power module 11, is used for testing power supply module 11 output voltages.Voltage-regulation knob 18 also is electrically connected with power module 11, is used for the output voltage according to the voltage-regulation power module 11 of voltage table 17 demonstrations, has guaranteed the accuracy of power module 11 output voltages, to guarantee testing efficiency.
As shown in Figure 2, can also on the casing 10 power switch 19 be set.Owing to adopt the test box of above-mentioned technical scheme embodiment illustrated in fig. 1, must pull out power supply immediately after finishing using, otherwise each element is in running order always in the test box at every turn, shorten the life-span of element.But in the time of the frequent use of needs, frequently plug power supply, operate very inconvenient.Be provided with on casing 10 after the power switch 19, power switch 19 is electrically connected with power module 11, is used to control opening or closing of power module 11.Like this, frequent interval of using can powered-down switch 19, need not pull out power supply, can also increase the security of operation.
Embodiment as shown in Figure 2 is for comprising several digital quantity input gauge tap 16, the embodiment of voltage table 17 and voltage-regulation knob 18 and 19 3 kinds of additional technical features of power switch simultaneously.In actual the use, can be according to the real needs situation, with several digital quantities input gauge tap 16,19 3 additional technical feature combination in any of voltage table 17 and voltage-regulation knob 18 and power switch are used in combination with the technical scheme of embodiment shown in Figure 1.
The particular location of the total interface that is provided with on the test box of the foregoing description is principle with the convenience that uses, and can be arranged on the optional position of handled easily.
Comprise that with tested DI module it is example that the casing 10 of the test box of 16 road DI input channels, the foregoing description is provided with 16 digital quantity input 16,24 output interfaces of gauge tap (can adopt the external connecting interface of 24 core IO lines), adopts test box shown in Figure 2 process to each road DI lane testing of DI module below.
At first according to the description of each module of the foregoing description and interface; Finish being connected of tested DI module and test box.Wherein, the DI channel signal interface of 16 road DI passage correspondences of tested DI module is plugged on wherein on 16 of 24 output interfaces being provided with on the test box respectively, and specifically which DI input channel signal interface is used for which output interface being connected without limits.
After the energized, turn on the power switch 19, open on the casing 10 16 digital quantities input gauge tap that are provided with again, 16 output interfaces by being provided with on the casing 10 respectively, the corresponding voltage signal that sends 24V to 16 road DI passages of tested DI module.The DI module receives after the voltage signal of 24V, through the processing of inside modules all each paths signals is synthesized to be converted to input control signal; Described then input control signal is by the CAN bus transfer CAN interface 14 on the case 10 after tested, received by the gateway module 12 of test box 10 inside.After gateway module 12 receives, described input control signal protocol conversion is become the COMPUTER DETECTION signal, and give computing machine through signal wire transmits by computer interface 15 outputs that are provided with on the casing 10, the testing software that is used to test the DI tunnel condition that sets in advance is installed on described computing machine.Whether described computing machine is converted into steering order through handling after receiving described COMPUTER DETECTION signal, normal to judge described tested each passage of DI module by show state on the interface of control testing software.Generally,, be reflected on the interface of testing software and can receive steering order, if the DI channel abnormal of DI module is reflected on the interface of testing software and does not receive steering order if the DI passage of DI module is normal.Described testing software can be the software by certain language establishment of situation according to the actual requirements.
In the test process, in order to guarantee testing efficiency, note observing display voltage on the voltage table 17, when the test voltage on the voltage table 17 departs from the operating voltage 24V of power module 11, make that by regulation voltage adjusting knob 18 voltage of power module 11 outputs is 24V, to guarantee testing efficiency.
The structural representation of a kind of test box that Fig. 3 provides for the utility model embodiment two; Present embodiment describes the technical scheme of present embodiment in detail for the DO module with the tested module.
As shown in Figure 3, the test box of present embodiment comprises casing 10, comprises in the casing 10: power module 11 and gateway module 12.Comprise CAN interface 14, several input interfaces 20 and test display unit 21 in the casing 10.
Power module 11 is used for converting the 220V alternating voltage to the 24V DC voltage; Normally by being located at a power interface external power supply on casing 10, power interface adopts the three-phase supply input interface to power module 11 usually.
CAN interface 14 is electrically connected with gateway module 12 and tested DO module respectively, be used to obtain described output control signal, and described output control signal is transferred to tested DO module by the CAN bus, provide voltage signal according to described output control signal for each road DO passage for tested DO module.Described output control signal is through the CAN bus transfer, also can be called the CAN signal.
Several input interfaces 20 are electrically connected with each DO channel signal interface of tested DO module respectively, are used for obtaining voltage signal from the DO passage of described tested DO module; Need to prove that when each road DO passage of tested DO module was good, tested DO module should provide the voltage signal of 24V for each road DO passage according to described output control signal, the input interface corresponding respectively with each road DO passage just can get access to voltage signal; When the digital quantity output channel fault of a certain road, handle through tested DO inside modules, can be for this road does not provide voltage signal, the input interface corresponding with this paths just obtains less than voltage signal.
Need to prove that the number of the output interface here specifically can be provided with according to the DO number of active lanes of DO module commonly used.For the DO module, the corresponding DO channel signal interface of DO passage.So generally DO channel signal interface and input interface can be complementary.Use in order to prevent that indivedual input interfaces from breaking down to influence, the number of the number of input interface greater than the DO input channel signal interface of DO module can be set; The number of the number of input interface less than the DO input channel signal interface of DO module can certainly be set, and can divide into groups to test this moment to the DO input channel of DO module.For example 24 input interfaces can be set on casing 10, such as adopting the external connecting interface of 24 core IO lines as 24 input interfaces; Can be used for testing simultaneously the DO module of DO passage with arbitrary number.If the number of DO passage can be measured simultaneously less than 24, also can distinguish each passage independent measurement or combination in any and measure; If the number of DO passage can be measured greater than 24 in batches.
Particularly, energized, computing machine is by testing software interface each DO passage sending controling instruction to tested DO module, and it is computer control signal that described computing machine carries out treatment conversion with these instructions, exports gateway module 12 to through signal wire; Gateway module 12 is converted to computer control signal according to translation-protocol and is fit to the output control signal that tested DO module receives, and exports tested DO module through the CAN interface to by the CAN bus.Tested DO module is according to the output control signal that receives, obtain voltage signal through treatment conversion, and with the signaling interface output of voltage signal by each DO passage, through each passage of DO respectively by test box on several input interfaces 20 receive, when certain DO passage is good, input interface one side corresponding with this passage can receive voltage signal, and when certain DO passage broke down, input interface one side joint corresponding with this passage can not receive voltage signal.Test display unit 21 is connected with the negative electricity of several input interfaces 20 and power module 11 respectively, to form the closed-loop path.Test display unit 21 by the described voltage signal that obtains from several input interfaces 20 to show test results.
The test box that present embodiment provides adopts institute's main line is integrated in test box inside.During test, corresponding respectively the linking to each other with computing machine with tested DO module of interface that is provided with on the test box can be realized test; Non-specialized-technical personnel through simple training can simply finish test, and operation is very easy.And the test box of present embodiment, circuit is stable; Can improve testing efficiency greatly.The test box of present embodiment can also be supported simultaneously the multiplexer channel of DO module to be tested, and also can test in batches, has very strong dirigibility and practicality.
Need to prove that the test display unit 21 in the foregoing description can be for being arranged on several pilot lamp on the casing 10; Each pilot lamp one end is electrically connected with an input interface, receives the voltage signal of DO passage, and the other end is connected with the negative electricity of power module 11, to form closed loop.Like this, just can judge the situation of tested DO module channels by the state of pilot lamp.When the DO of tested DO module passage was good, pilot lamp brightened, otherwise pilot lamp does not change.Test display unit 21 can also be arranged on several digital quantity output terminals and the Voltage Reference end on the casing 10; Several digital quantity output terminals are electrically connected with several input interfaces 20 respectively; The Voltage Reference end is connected with the negative electricity of power module 11.That is each digital quantity output terminal is corresponding connects an input interface, receives the malleation signal of one tunnel output channel of tested DO module, and the Voltage Reference end is connected with the negative electricity of power module 11 as reference to be held.By this scheme, the employing multimeter is tested the test voltage between one road digital quantity output terminal and the Voltage Reference end, just can judge the state of the DO passage of the DO module corresponding with this road digital quantity output terminal.These two kinds of schemes can be used in combination also and can separately use.
The structural representation of the another kind of test box that Fig. 4 provides for the utility model embodiment two.As shown in Figure 4, for whether the output voltage of testing power supply module 11 is normal, can also on the casing 10 voltage table 17 and voltage-regulation knob 18 be set.Voltage table 17 is electrically connected with power module 11 at cabinet inside.Be used for testing power supply module 11 output voltages.Voltage-regulation knob 18 also is electrically connected with power module 11; Be used for regulating the output voltage of power module 11 according to the display voltage of voltage table 17.Because generally, the input of power module 11 is also unstable, can slightly depart from 24V usually, the effect that influence is measured.Adopt this technical scheme can regulate the output voltage of power module 11 according to the display voltage of voltage table 17; Guaranteed the accuracy of power module 11 output voltages, to guarantee testing efficiency.
As shown in Figure 4, can also on the casing 10 power switch 19 be set.Owing to adopt the test box of above-mentioned technical scheme embodiment illustrated in fig. 3, must pull out power supply immediately after finishing using, otherwise each element is in running order always in the test box at every turn, shorten the life-span of element.But in the time of the frequent use of needs, frequently plug power supply, operate very inconvenient.So, a power switch 19 can be set on casing 10, power switch 19 is electrically connected with power module 11, is used to control opening or closing of power module 11 power supplies.Like this, frequent interval of using can the powered-down interface, need not pull out power supply, can also increase the security of operation.
Embodiment as shown in Figure 4 is for comprising voltage table 17 and voltage-regulation knob 18 simultaneously, the embodiment of 19 two kinds of additional technical features of power switch.In actual the use, also can be according to the real needs situation, voltage table 17 and voltage-regulation knob 18 are used in combination separately with the technical scheme of embodiment shown in Figure 1 or power switch 19 are used in combination separately with the technical scheme of embodiment shown in Figure 1.
Need to prove; on the embodiment two described test box casings 10 a DO short circuiting switch can also be set; described DO short circuiting switch one end is electrically connected with several input interfaces 20, and the other end is connected with the negative electricity of power module 11, is used to test whether be provided with short-circuit protection function in the DO module.
Particularly, with the similar process of measuring the DO passage, energized, open the DO short circuiting switch, computing machine is by testing software interface each DO passage sending controling instruction to tested DO module, it is computer control signal that described computing machine carries out treatment conversion with these instructions, exports gateway module 12 to through signal wire; Gateway module 12 is converted to computer control signal according to translation-protocol and is fit to the output control signal that tested DO module receives, and exports tested DO module through the CAN interface to by the CAN bus.Tested DO module is according to the output control signal that receives, obtain voltage signal through treatment conversion, and with the signaling interface output of voltage signal by each DO passage, through each passage of DO respectively by test box casing 10 on several input interfaces 20 receive, open owing to short circuiting switch this moment, the passage short circuit, can be to DO passage return signal, this signal is more successively through tested module and test box conversion process, return along former route, received and be converted to steering order at last by computing machine, on the interface that is presented at testing software.By the show state on the interface of judging testing software, can determine just whether the passage of tested DO module has short-circuit protection function.
The particular location of the total interface that is provided with on the test box of the utility model embodiment is principle with the convenience that uses, and can be arranged on the optional position of handled easily.
Comprise that with tested DO module it is example that the casing 10 of the test box of 16 road DO output channels, the foregoing description is provided with 24 input interfaces (can adopt the external connecting interface of 24 core IO lines), adopts test box shown in Figure 4 process to each road DO lane testing of DO module below.
At first according to the description of each module of the foregoing description and interface; Finish being connected of tested DO module and test box.Wherein, the DO input channel signal interface of 16 road DI input channel correspondences of tested DO module, be plugged on wherein on 16 of 24 output interfaces being provided with on the test box respectively, specifically which DO input channel signal interface is used for which output interface being connected without limits.
After the energized, turn on the power switch 19, by the testing software of installing on the computing machine, each paths to tested DO module sends steering order, described steering order machine treatment conversion as calculated is a computer control signal, and, transfer to the gateway module 12 of test box casing 10 inside via the computer interface that is provided with on the test box by signal wire transmits; Gateway module 12 receives after the computer control signal, by protocol conversion computer control signal is converted to the output control signal, will export control signal again and export through the CAN bus transfer to tested DO module from the CAN interface that test box casing 10 is provided with.Because the operating voltage of gateway module 12 is 24V, the CAN signal that sends of gateway module 12 has the voltage of 24V like this.Tested DO module receives after the output control signal, respectively exports the voltage signal of 24V by 16 road DO passages; When each road DO passage was good, the voltage signal of the 24V of each road DO passage was transferred to the pilot lamp that is arranged on the casing 10 by 16 interfaces in the external connecting interface of 24 core IO lines on the test box, to light pilot lamp.When break down in a certain road, this road DO passage is output voltage signal not, corresponding pilot lamp can not be lighted, signals transmission is deferred to the agreement of signal specific transmission, the command signal of on software, sending to a certain paths of DO module, determine to connect in tested DO module one side, by judging on the test box pilot lamp with the corresponding connection of each input interface difference, just can judge the kilter of each road DO passage like this by the input interface of this paths correspondence.Perhaps adopt 16 digital quantity output terminals that are and the Voltage Reference end be electrically connected with the external connecting interface of 24 core IO lines, the employing multimeter is tested the test voltage between one road digital quantity output terminal and the Voltage Reference end, just can judge the state of the passage of the DO module corresponding with this road digital quantity output terminal.These two kinds of methods can be used in combination also and can separately use.Generally, testing software can be the software by certain language establishment of situation according to the actual requirements.
The structural representation of a kind of test box that Fig. 5 provides for the utility model embodiment three; Present embodiment considers that existing DI module and DO module can be integrated on the physical entity, forms the DI/O module.The DI/O module not only can realize the DI function but also can realize the DI/O module of DO function; But two functions cannot realize simultaneously.
As shown in Figure 5, the test box of present embodiment comprises a casing 10, comprises in the described casing: power module 11 and gateway module 12.Comprise on the casing 10: several output interfaces 13, CAN interface 14, several input interfaces 20 and test display unit 21.
Wherein power module 11 is used for converting the 220V alternating voltage to the 24V DC voltage;
Wherein several output interfaces 13 use when being used to test the DI module.CAN interface 14 and computer interface 15 all need to use in test DI module and DO module.Several input interfaces 20 adopt when being used to test the DO module.
Wherein several output interfaces 13 are electrically connected with power module 11, and be electrically connected with each DI channel signal interface of tested DI module respectively, in order to provide 24V voltage signal to the digital quantity input channel of described tested module correspondence by described digital quantity input channel signal interface.The number design of output interface specifically can not repeat them here with reference to the associated description of embodiment one.
CAN interface 14 is electrically connected with gateway module 12, when being used to test the DI module, be used to receive tested DI module output, and the input control signal by the CAN bus transfer, and described input control signal transferred to gateway module 12; Described input control signal is that each road digital quantity input channel of tested DI module produces according to the 24V voltage signal that receives.When being used to test the DO module, CAN interface 14 is used to obtain the output control signal of gateway module 12 according to the described computer control signal conversion that receives, and described output control signal is transferred to tested DO module by the CAN bus, the voltage signal of 24V is provided for each road digital quantity input channel according to described input control signal for described tested DO module.
The interface of needs when several input interfaces 20 are used to test the DO module.Several input interfaces 20 are electrically connected with each DO channel signal interface of tested DO module respectively, are used for obtaining voltage signal from the DO passage of described tested DO module; Need to prove that when each road DO passage of tested DO module was good, tested DO module should provide the voltage signal of 24V for each road DO passage according to described output control signal, the input interface corresponding respectively with each road DO passage just can get access to voltage signal; When the digital quantity output channel fault of a certain road, handle through tested DO inside modules, can be for this road does not provide voltage signal, the input interface corresponding with this paths just obtains less than voltage signal.The number design of output interface specifically can not repeat them here with reference to the associated description of embodiment two.
The test box that present embodiment provides, each passage that will be used to test the DI/O module is integrated in the casing, integrated test DI module and DO functions of modules.During test, corresponding respectively the linking to each other with computing machine with tested D/O module of interface that is provided with on the test box can be realized test; Easy for operation.Non-specialized-technical personnel through simple training can simply finish test operation.And the test box of present embodiment, circuit is stable; Can improve testing efficiency greatly.The test box of present embodiment can also be supported simultaneously the multiplexer channel of DI/O module to be tested, and also can test in batches, has very strong dirigibility and practicality.
The test box of present embodiment is equivalent to the foregoing description one and embodiment two are integrated on the physical entity function that can realize testing each DI passage of DI module, the function that can realize testing each DO passage of DO module again; But during actual the use, the module of two functions can not be tested simultaneously.
The structural representation of the another kind of test box that Fig. 6 provides for the utility model embodiment three; As shown in Figure 6, several digital quantities input gauge tap 16 can be set on the casing 10 of the test box of present embodiment, also can be provided with the voltage table 17 and the voltage-regulation knob 18 that are used for testing power supply module 11 output voltages, also can be provided with power switch 19; And the test display unit 21 during test DO module can be for being arranged on several pilot lamp on the casing 10 or being arranged on several digital quantity output terminals and a Voltage Reference end on the casing 10.
The test function that each element or equipment are realized in the present embodiment is identical with embodiment two with the foregoing description one, and each DI passage of test DI module please refer to embodiment one in detail, and each DO passage of test DO module does not repeat them here in detail with reference to embodiment two.
Fig. 7 is the top panel synoptic diagram of a kind of test box of the utility model embodiment; Fig. 8 is the front panel synoptic diagram of a kind of test box of the utility model embodiment; Fig. 9 is the rear panel synoptic diagram of a kind of test box of the utility model embodiment; Fig. 7 to Fig. 9 only is one can be used for testing the exemplary plot that the DI module can be used for testing the test box of DO module again, in actual the use, can also expand the interface on the test box according to real needs.And the particular location of the total interface that is provided with on the test box is principle with the convenience that uses, and can be arranged on the optional position of handled easily.
The structural representation of the test macro that Figure 10 provides for the utility model embodiment four; As shown in figure 10, the test macro of present embodiment comprises test box 30 and computing machine 40, test box 30 can adopt the described test box of above-mentioned arbitrary embodiment, and the testing software that is used to control test is installed on the computing machine 40, and computing machine 40 and test box 30 are connected by signal wire.Described signal wire is generally the RS232 signal wire.The test macro of present embodiment realizes that the process of test DI/O module is all identical with above-mentioned three embodiment, with reference to the foregoing description one to embodiment three, do not repeat them here in detail,
It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (10)
1. a test box is characterized in that, comprises a casing,
Comprise in the described casing:
Power module is used for converting the 220V alternating voltage to the 24V DC voltage;
Comprise on the described casing:
Several output interfaces, be electrically connected with described power module, and be electrically connected with each digital quantity input channel signal interface of tested module respectively, in order to provide 24V voltage signal to the digital quantity input channel of described tested module correspondence by described digital quantity input channel signal interface;
The controller area network interface is connected with described tested module by controller area network bus, is used to receive described input control signal described tested module output, that pass through described controller area network bus transmission;
Also comprise in the described casing:
Gateway module, be connected with described controller area network interface with described power module, be used for obtaining described input control signal by described controller area network interface, and be the COMPUTER DETECTION signal according to protocol conversion, and export described COMPUTER DETECTION signal to computing machine by the computer interface on the described casing with described input control signal.
2. test box according to claim 1 is characterized in that, described casing is provided with several digital quantity input gauge tap, and described several digital quantity input gauge tap are electrically connected between described several output interfaces and the described power module.
3. test box according to claim 1 is characterized in that, described casing is provided with voltage table and voltage-regulation knob; Described voltage table is electrically connected with described power module, is used to test described power module output voltage; Described voltage-regulation knob is electrically connected with described power module, is used for the output voltage according to the described power module of voltage-regulation of described voltage table demonstration.
4. according to the arbitrary described test box of claim 1-3, it is characterized in that also be provided with power switch on the described casing, described power switch is electrically connected with described power module, be used to control opening or closing of described power module.
5. a test box is characterized in that, comprises a casing,
Comprise in the described casing:
Power module is used for converting the 220V alternating voltage to the 24V DC voltage;
Gateway module is electrically connected with described power module; And obtain the computer control signal of computing machine output by the computer interface on the described casing, and described computer control signal is the output control signal according to protocol conversion;
Comprise on the described casing:
The controller area network interface is electrically connected with described gateway module and described tested module respectively, is used to obtain described output control signal, and by controller area network bus described output control signal is transferred to described tested module;
Several input interfaces are electrically connected with each digital quantity output channel signaling interface of described tested module respectively, are used for obtaining voltage signal from the digital quantity output channel of described tested module;
The test display unit, the negative electricity with described several input interfaces and described power module is connected respectively; By the described voltage signal that obtains from described several input interfaces to show test results.
6. test box according to claim 5 is characterized in that,
Described test display unit is several pilot lamp that are arranged on the described casing, described several pilot lamp one ends be electrically connected with described several input interfaces respectively, the other end is connected with the negative electricity of described power module respectively;
Perhaps, described test display unit is several digital quantity output terminals and a Voltage Reference end that is arranged on the casing; Described several digital quantity output terminals are electrically connected with described several input interfaces respectively, and described Voltage Reference end is connected with the negative electricity of described power module.
7. test box according to claim 5 is characterized in that, described casing is provided with voltage table and voltage-regulation knob; Described voltage table is electrically connected with described power module, is used to test the output voltage of described power module; Described voltage-regulation knob is electrically connected with described power module, is used for the output voltage according to the described power module of voltage-regulation of described voltage table demonstration.
8. according to the arbitrary described test box of claim 5-7, it is characterized in that also be provided with power switch on the described casing, described power switch is electrically connected with described power module, be used to control opening or closing of power module.
9. a test box is characterized in that, comprises a casing,
Comprise in the described casing:
Power module is used for converting the 220V alternating voltage to the 24V DC voltage;
Gateway module, be connected with controller area network interface on the described casing with described power module, be used for obtaining described input control signal by described controller area network interface, and be the COMPUTER DETECTION signal according to protocol conversion, and export described COMPUTER DETECTION signal to computing machine by the computer interface on the described casing with described input control signal;
Described gateway module also is used for obtaining by the computer interface on the described casing computer control signal of computing machine output, and described computer control signal is the output control signal according to protocol conversion;
Comprise on the described casing:
Several output interfaces, be electrically connected with described power module, and be electrically connected with each digital quantity input channel signal interface of tested module respectively, in order to provide 24V voltage signal to the digital quantity input channel of described tested module correspondence by described digital quantity input channel signal interface;
Described controller area network interface is used for being connected with described tested module by controller area network bus, is used to receive described input control signal described tested module output, that pass through described controller area network bus transmission;
Described controller area network interface also is electrically connected with described gateway module, is used to obtain described output control signal, and by controller area network bus described output control signal is transferred to described tested module;
Several input interfaces are electrically connected with each digital quantity output channel signaling interface of described tested module respectively, are used for obtaining voltage signal from the digital quantity output channel of described tested module;
The test display unit, the negative electricity with described several input interfaces and described power module is connected respectively; By the described voltage signal that obtains from described several input interfaces to show test results.
10. a test macro is characterized in that, comprises each described test box of claim 1-9, also comprises a computing machine, and described computing machine is connected by signal wire with described test box.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202447993U CN201637771U (en) | 2009-11-06 | 2009-11-06 | Test box and test system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202447993U CN201637771U (en) | 2009-11-06 | 2009-11-06 | Test box and test system |
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|---|---|
| CN201637771U true CN201637771U (en) | 2010-11-17 |
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| CN2009202447993U Expired - Fee Related CN201637771U (en) | 2009-11-06 | 2009-11-06 | Test box and test system |
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| CN (1) | CN201637771U (en) |
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| CN106093629A (en) * | 2016-06-03 | 2016-11-09 | 上海机电工程研究所 | The unit test system of the missile-borne computer of infrared rotary missile and method of testing |
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| CN103823460A (en) * | 2014-02-17 | 2014-05-28 | 株洲南车时代电气股份有限公司 | Test apparatus and test method of auxiliary converter control cabinet |
| CN103823460B (en) * | 2014-02-17 | 2017-03-15 | 株洲南车时代电气股份有限公司 | A kind of test equipment of AuCT controlling machine box and method of testing |
| CN106093629A (en) * | 2016-06-03 | 2016-11-09 | 上海机电工程研究所 | The unit test system of the missile-borne computer of infrared rotary missile and method of testing |
| CN106843131A (en) * | 2017-03-24 | 2017-06-13 | 深圳市艾特讯科技有限公司 | A kind of test system |
| CN107065660A (en) * | 2017-03-24 | 2017-08-18 | 深圳市艾特讯科技有限公司 | A kind of method of testing and system |
| CN107065660B (en) * | 2017-03-24 | 2019-12-31 | 深圳市艾特讯科技有限公司 | Test method and system |
| CN107561381A (en) * | 2017-08-16 | 2018-01-09 | 国家电网公司 | A kind of grid interface detection device |
| CN108897304A (en) * | 2018-06-28 | 2018-11-27 | 许继集团有限公司 | A kind of test macro of variable pitch driver control panel |
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Granted publication date: 20101117 Termination date: 20111106 |