Utility model content
The purpose of this utility model be to provide a kind of can automatically to the automatic testing equipment specially becoming acquisition terminal and test, greatly improve test speed, reduce the negative control acquisition terminal of testing cost.
For achieving the above object, the utility model have employed following technical scheme: a kind of automatic testing equipment of special change acquisition terminal, comprise main control chip, its RS485 interface, RS232 interface, infrared interface respectively with specially become 485 mouthfuls of acquisition terminal, 232 service port, infrared module be connected, its I/O input port connects testing button, the pulse per second (PPS) lead-out terminal specially becoming acquisition terminal, active reactive pulse output terminal and remote control lead-out terminal respectively, and its I/O delivery outlet connects display screen, the state-signal collection terminal specially becoming acquisition terminal and pulse collection terminal respectively.
Described main control chip adopts MSP430 single-chip microcomputer, its Uart0 mouth is connected with 232 service port specially becoming acquisition terminal by 232 conversion chips, its Uart1, Uart2 mouth is connected with the two-way 485 mouthfuls specially becoming acquisition terminal by 485 conversion chips, the external infrared module of its Uart3 mouth and the infrared module communication specially becoming acquisition terminal, its I/O input port by optical coupling isolation circuit respectively with testing button, the pulse per second (PPS) lead-out terminal of special change acquisition terminal, active reactive pulse output terminal is connected with remote control lead-out terminal, its I/O delivery outlet connects the state-signal collection terminal and pulse collection terminal that specially become acquisition terminal by relay.
Described display screen is LCD liquid crystal display screen.
Described MSP430 single-chip microcomputer is connected with usb circuit, by its I by its SPI interface
2c interface connects eeprom memory.
Power circuit is powered respectively to MSP430 single-chip microcomputer and the special acquisition terminal that becomes by travel switch.
As shown from the above technical solution, tested special change acquisition terminal only need be correctly placed in draw-in groove place, test board seat in the plane at test process by the utility model, press testing button, just can automatically test specially becoming acquisition terminal, and test result is presented in LCD liquid crystal display screen, the simple and reliable property of operating process is high, decreases tester's quantity, improve test speed, improve production efficiency greatly.
Embodiment
A kind of automatic testing equipment of special change acquisition terminal, comprise main control chip, its RS485 interface, RS232 interface, infrared interface respectively with specially become 485 mouthfuls of acquisition terminal 2,232 service port, infrared module be connected, its I/O input port connects testing button, the pulse per second (PPS) lead-out terminal specially becoming acquisition terminal 2, active reactive pulse output terminal and remote control lead-out terminal respectively, its I/O delivery outlet connects display screen, the state-signal collection terminal specially becoming acquisition terminal 2 and pulse collection terminal respectively, described display screen is LCD liquid crystal display screen, as shown in Figure 1, 2.
As Fig. 1, shown in 2, described main control chip adopts MSP430 single-chip microcomputer 1, its Uart0 mouth is connected with 232 service port specially becoming acquisition terminal 2 by 232 conversion chips, its Uart1, Uart2 mouth is connected with the two-way 485 mouthfuls specially becoming acquisition terminal 2 by 485 conversion chips, the external infrared module of its Uart3 mouth and the infrared module communication specially becoming acquisition terminal 2, its I/O input port by optical coupling isolation circuit respectively with testing button, the pulse per second (PPS) lead-out terminal of special change acquisition terminal 2, active reactive pulse output terminal is connected with remote control lead-out terminal, its I/O delivery outlet connects the state-signal collection terminal and pulse collection terminal that specially become acquisition terminal 2 by relay.Described MSP430 single-chip microcomputer 1 is connected with usb circuit, by its I by its SPI interface
2c interface connects eeprom memory, and power circuit is powered respectively to MSP430 single-chip microcomputer 1 and the special acquisition terminal 2 that becomes by travel switch.Power circuit controls the break-make of power supply in test process by travel switch, prevents tester from getting an electric shock when placing and specially becoming acquisition terminal 2, adds the security in test process; Usb circuit can be used for the test procedure upgrading automatic testing equipment, simultaneously for deriving the test result of tested machine; Eeprom memory preserves some important parameters arranged in test machine test process, has power down hold function.
Be further described below in conjunction with Fig. 1,2 pairs of the utility model.
MSP430 single-chip microcomputer 1 communication control mouth sends message respectively to specially becoming acquisition terminal 2, is replied the automatic test of 232 mouthfuls, 485 mouthfuls and the infrared module realizing specially becoming acquisition terminal 2 by message; Its I/O input port by optical coupling isolation circuit respectively with specially becomes the pulse per second (PPS) lead-out terminal of acquisition terminal 2, active reactive pulse output terminal, remote control lead-out terminal and testing button and is connected, MSP430 single-chip microcomputer 1 judges by the low and high level change of acquisition pulse digital data acquisition passage the pulse per second (PPS), the active reactive output Qualification that specially become acquisition terminal 2; Send the order of remote control divide-shut brake by 485 mouthfuls to specially becoming acquisition terminal 2, then judge specially to become acquisition terminal 2 remote-control channel hardware Qualification with the state change of normally closed node by long the opening of digital data acquisition channel acquisition remote control; By judging that the state change of the button state digital data acquisition passage of testing button starts test process; Its I/O delivery outlet specially becomes state-signal collection terminal and the pulse collection terminal of acquisition terminal 2 by relay access, MSP430 single-chip microcomputer 1 is by the output state of I/O mouth pilot relay, send that message reads its remote signalling, distant veiny state contrasts by communication port to specially becoming acquisition terminal 2 again, thus judge specially to become acquisition terminal 2 remote signalling, distant arteries and veins acquisition channel hardware state; And by exporting external LCD liquid crystal display screen display test process and result.
When detecting, tested test-run a machine is correctly placed in draw-in groove place, test board seat in the plane, power circuit is linked into MSP430 single-chip microcomputer 1 respectively by travel switch and specially becomes on the power supply terminal of acquisition terminal 2, testing staff leave behind travel switch depression bar after, power supply conducting; Now press startup testing button, this proving installation starts auto test flow.
The connecting line of all tests and power lead connect by this device, only need put into test position by slide plate by specially becoming acquisition terminal 2, press testing button and start test, and take out at the end of to be tested and specially become acquisition terminal 2, whole test process is efficient and convenient; This device, with specially becoming each terminal of acquisition terminal 2 is connected used spring contact pin into rhombus joint, effectively can prevent the loose contact caused different in size of each terminal; This device has crystal display, facilitates the display of the essential information such as each step and test result in whole test process, facilitates the judgement of production link reviewer to test result; This device achieves the test automation specially become on acquisition terminal 2 streamline, separate unit is specially become acquisition terminal 2 test duration to be reduced within 30 seconds from 10 minutes, and reduce by more than 95% test duration, efficiency improves more than 2000%
In sum, tested special change acquisition terminal only need be correctly placed in draw-in groove place, test board seat in the plane at test process by the utility model, press testing button, just can automatically test specially becoming acquisition terminal, and test result is presented in LCD liquid crystal display screen, the simple and reliable property of operating process is high, decreases tester's quantity, improve test speed, improve production efficiency greatly.