CN202393856U - A printer circuit board online tester for blood glucose detector - Google Patents

Abstract

The utility model is suitable for a medical instrument test equipment field provides a printer circuit board on-line measuring appearance for blood sugar detects meter, and it is main including display terminal, PC, data collection station, difunctional test fixture, its characterized in that: the display terminal is connected with the PC, the port of the PC is connected with the data collector, and the data collector is connected with the dual-function test fixture. The utility model discloses can carry out the circuit and switch the constitution and select and carry out ICT test or FCT test, generate the report form in order to demonstrate the result after PC handles, simple structure, test convenient operation.

Description

A printer circuit board online tester for blood glucose detector

technical field

The utility model belongs to the technical field of medical device testing equipment, in particular to an online tester for a printer circuit board used for a blood sugar detector. the

Background technique

In today's society, there are quite a lot of diabetic patients. Since diabetes is prone to cause a series of serious complications, in order to avoid these complications as much as possible, it is necessary to use a precise blood glucose detector to monitor the blood glucose concentration in the blood of diabetic patients. condition in order to decide whether medication is needed. The current signal generated during the detection reaction passes through the current counting facility, reads the number of electrons, and then converts the glucose concentration readings to be displayed on the computer of the detector, and prints the results from the printer as needed to facilitate therapeutic applications. A high-quality circuit board is a necessary condition for the stable and precise operation of the printer. The online test ICT of the existing printer computer board is checked by testing the electrical properties and electrical connections of the online components. Various defects and failures occur during the opening, short circuit, assembly process of devices and various circuit networks, but it cannot evaluate the performance of the system composed of the entire circuit board at the clock speed; most of the current circuit boards through ICT Although it is possible to accurately locate the pros and cons of electronic components, it is impossible to judge the function of the entire circuit board. Another method is the functional test FCT, which can test whether the entire system can achieve the design goal. It regards the unit under test on the circuit board as a functional body, and provides a simulated operating environment for the test target board to make it work in various Provide input signals to it, and detect output signals according to the design requirements of the function body, so as to obtain the parameters of each state to verify the function of the printer computer board. the

At present, the cost of equipment and instruments that can take into account both the short/open circuit test ICT and the functional test FCT is high, and the labor cost is relatively high. The general computer online detection of the manufacturer is to test the short/open circuit test ICT and the functional test FCT separately. The work is very meticulous and cumbersome. This manual detection method has a low degree of automation, and part of it requires manual testing and subjective judgment, which is even more inefficient and cannot meet the needs of production. Therefore, it is necessary to develop a low-cost, fully automatic and comprehensive testing system. the

Contents of the invention

The utility model is proposed in order to overcome the shortcomings of the above prior art, and the technical problem it solves is to provide a simple operation and low cost test that can simultaneously perform short/open circuit test ICT and functional test FCT on the online printer computer board instrument. the

For this reason, the utility model provides a printer circuit board online tester for a blood glucose detector, which mainly includes a display terminal, a PC, a data collector, and a dual-function test fixture, and is characterized in that: the display terminal It is connected with a PC, the port of the PC is connected with a data collector, and the data collector is connected with a dual-function test fixture. the

The double-function test fixture is equipped with a needle bed device and a controller MCU, the controller MCU junction is connected with the needle bed device, and the needle bed device is connected with the circuit board to be tested. the

The controller MCU includes switchable ICT test and FCT test circuits, and the switching control between the ICT test and the FCT test is controlled by the MCU. the

The PC of the present utility model controls the progress of the whole test process, outputs control signals to the microcontroller MCU, and the controller MCU has a relay to switch lines to select the ICT test or the FCT test, and then the PC software sends the test command to the data acquisition module, After the bed of needle device on the dual-function test fixture is connected to the circuit board to be tested, the returned test data is obtained to the acquisition module, and the acquisition module sends the test results back to the PC through another serial port, and the final test results and data are processed by the PC , After storage, generate a report and output it to the display terminal. the

The beneficial effects of the utility model are: the dual-function test fixture is equipped with a controller MCU, and the relay of the controller MC performs line switching to form a selection ICT test or FCT test, and the result is displayed on the display terminal after being processed by a PC, and the structure is simple , The test operation is convenient. the

Description of drawings

Fig. 1 is the structural representation of the utility model. the

Fig. 2 is a detailed circuit diagram of the controller MCU of the present invention. the

In the figure, 1 is a display terminal, 2 is a PC, 3 is a data collector, 4 is a dual-function test fixture, 5 is a circuit board to be tested, 6 is a controller MCU, and 7 is a needle bed device. the

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail. the

The PC 2 software in an embodiment of a printer circuit board online tester for a blood glucose detector of the present invention is developed using labview, wherein visa is used for serial port communication, and the generation method of the test report uses a relatively advanced The activex technology directly calls Microsoft controls for development. the

When testing, the circuit board 5 to be tested is placed on the bed of needles device 7 to form a loop with the test circuit board PC 2, and the PC 2 control circuit selects and executes the ICT test or the FCT test mode according to the program of the test mode of the memory, and controls The I/0 interface control circuit of the MCU6 leads the data and control signals of the PC 2 to the data collector 3, and the data collector 3 processes the data and control signals, and then processes the processed data and control signals. The signal is transmitted to the circuit board 5 to be tested of the dual-function test fixture 4 to execute its functional test mode, and the test result is processed by the I/O interface controller MCU6 and the data collector 3, and then transmitted to the PC 2 control circuit for use. Compare and judge whether its test result is normal or not, will generate a report and be displayed on the display terminal 1, after this function mode test is finished, carry out another function mode test again, until carrying out all function test touches in the PC machine 2 memory. the

As shown in Figure 2, it is a detailed circuit diagram of the I/0 interface control circuit of the controller MCU6 of the present invention, which includes an ICT test or FCT test switching circuit. the

The circuit board test system of the present utility model, through the cooperation of the controller MCU6 and the test circuit, completes the test of the circuit board 5 to be tested, and provides the test results to the PC 2 through the serial port to be displayed on the display terminal 1, so that it can be quickly, Accurately and intuitively locating the cause of the problem improves the efficiency of detecting the problem of the circuit board of the printer circuit board of the blood glucose meter and reduces the cost. the

Claims (3)

1. printer electronic board on-line testing appearance that is used for the blood sugar test meter; It mainly includes display terminal, PC, data acquisition unit, difunctional test fixture; It is characterized in that: said display terminal is connected with PC; The PC port is connected to data acquisition unit, and data acquisition unit links to each other with difunctional test fixture.

2. a kind of printer electronic board on-line testing appearance that is used for the blood sugar test meter according to claim 1; It is characterized in that: needle-bar device, controller MCU are housed on the said difunctional test fixture; Controller MCU knot mouth links to each other with the needle-bar device, and the needle-bar device links to each other with circuit board under test.

3. a kind of printer electronic board on-line testing appearance that is used for the blood sugar test meter according to claim 2 is characterized in that: said controller MCU includes switchable ICT test and FCT test circuit.

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