CN207502652U - A kind of communication apparatus knows card detection circuit and detection device - Google Patents
A kind of communication apparatus knows card detection circuit and detection device Download PDFInfo
- Publication number
- CN207502652U CN207502652U CN201721267578.9U CN201721267578U CN207502652U CN 207502652 U CN207502652 U CN 207502652U CN 201721267578 U CN201721267578 U CN 201721267578U CN 207502652 U CN207502652 U CN 207502652U
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- test
- communication apparatus
- microcontroller
- plate
- thimble
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Abstract
The utility model is related to a kind of communication apparatus to know card detection circuit and detection device, the detection circuit includes power supply, microcontroller, relay and test thimble, the power supply provides 5V direct-current working volts for microcontroller and provides 2.8V direct current sampling analogue voltages for test board, each test thimble is concatenated with a relay, the microcontroller is electrically connected by relay and test thimble, and the test thimble is electrically connected with each test point on test board.Microcontroller is by acquiring the resistance value over the ground of each test point, to judge SIM card, TF card with the presence or absence of failures such as short circuit, open circuit and rosin joints, SIM card and TF card really are inserted into due to not having to go again, the detection of resistance value over the ground can be completed in a few seconds, efficiency is increased dramatically；The communication apparatus knows card detection apparatus and clamps test board using quick-speed jigs, and test thimble is made to be electrically connected with each test point on test board, plate is taken to put plate quick and convenient.
Description
Technical field
The utility model is related to communication apparatus detection technique field more particularly to a kind of communication apparatus know card detection circuit and
Detection device.
Background technology
SIM card and TF card are generally provided on communication apparatus, each communication apparatus is required for detecting whether to recognize card（Recognize card
Refer to after SIM card and TF card are inserted into communication apparatus, normally can identify and use）, existing detection method is using people
Work mode, in test board（Cell phone mainboard）It is upper to be inserted into true SIM card and TF card, judged, manual plug-in card labor intensity is big,
Efficiency is low, has much room for improvement.
Utility model content
True plug-in card is not needed to regard to that can detect whether to recognize the communication apparatus of card the purpose of this utility model is to provide a kind of
Know card detection circuit and detection device.
The utility model is realized in this way：A kind of communication apparatus knows card detection circuit, including power supply, microcontroller
STC15F2K60S2, relay and test thimble, the power supply provide 5V direct-current working volts for microcontroller and are test
Plate provides 2.8V direct current sampling analogue voltages, and each thimble of testing is concatenated with a relay, and the microcontroller passes through relay
Device and test thimble are electrically connected with each test point on test board.
Wherein, the microcontroller include mainboard TLP521-1416, comparing unit, A/D modular converters, voltage-stablizer 78L05 and
Driving chip CH340G, the microcontroller control the actuating of relay, acquire the resistance value over the ground of each test point successively, and measurement
Data interlock out measures data and is uniformly given to A/D modular converters into line number in monolithic mainboard TLP521-1416
Mould is converted, and comparing unit is compared transformed data and critical field value, and comparison result is passed through driving chip
CH340G is shown on external display.
Wherein, the power supply includes transformer, voltage-stablizer and transformation coil, and the transformer turns 220V alternating currents
12V DC electricity is changed to, 12V DC electricity is converted to 5V direct currents by the voltage-stablizer again, and transformation coil is converted to 5V direct currents
2.8V direct current.
Wherein, the test thimble quantity is 20 needles, and that tests SIM1 has 6 needles, tests 6 needles that have of SIM2, and tests TF card
Have 8 needles.
Another technical solution provided by the utility model is：A kind of communication apparatus knows card detection apparatus, including institute above
The detection circuit stated, further includes frame, pedestal, needle plate, quick-speed jigs, support plate, guide plate and guide post, and the needle plate is fixed on guide plate
On, the guide plate is slidably disposed on guide post, and the guide plate is fixedly connected with quick-speed jigs, and the quick-speed jigs are fixed on
On frame, the support plate is fixed on pedestal.
Wherein, the test thimble is arranged on needle plate, and the detection circuit is arranged on chassis interior.
Wherein, the needle plate is connect by support column with guide plate.
The beneficial effects of the utility model are：The communication apparatus knows card detection circuit and includes power supply, microcontroller
STC15F2K60S2, relay and test thimble, test thimble and each test point on test board（SIM card and TF card are drawn
Foot）Electrical connection, microcontroller is by acquiring the resistance value over the ground of each test point（Analog voltage drops）, to sentence whether SIM card, TF card deposit
In failures such as short circuit, open circuit and rosin joints, SIM card and TF card really are inserted into due to not having to go again, can in a few seconds be completed over the ground
The detection of resistance value, efficiency are increased dramatically；The communication apparatus knows card detection apparatus and clamps test board using quick-speed jigs, makes
Test thimble is electrically connected with each test point on test board, plate is taken to put plate quick and convenient.
Description of the drawings
Fig. 1 is the schematic diagram that communication apparatus described in the utility model knows card detection circuit embodiment；
Fig. 2 is the front view that communication apparatus described in the utility model knows card detection apparatus embodiment；
Fig. 3 is the side view that communication apparatus described in the utility model knows card detection apparatus embodiment；
Fig. 4 is the vertical view that communication apparatus described in the utility model knows card detection apparatus embodiment.
1st, frame；2nd, pedestal；3rd, needle plate；4th, quick-speed jigs；5th, support plate；6th, guide plate；7th, guide post；8th, support column；9th, it tests
Plate.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention is further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As communication apparatus described in the utility model know card detection circuit embodiment, as shown in Figure 1, including power supply,
Microcontroller STC15F2K60S2, relay and test thimble, the power supply for microcontroller provide 5V direct-current working volts with
2.8V direct current sampling analogue voltages are provided for test board, each thimble of testing is concatenated with a relay, and the microcontroller leads to
Relay and test thimble electrical connection are crossed, the test thimble is electrically connected with each test point on test board.
In the present embodiment, the microcontroller includes mainboard TLP521-1416, comparing unit, A/D modular converters, voltage stabilizing
Device 78L05 and driving chip CH340G, the 78L05 voltage-stablizers are used to provide computer and microcontroller STC15F2D60S2 into line number
According to transmission voltage, the driving chip CH340G is used to implement USB and turns serial ports, and driving chip CH340G is a usb bus
Switching chip realizes that USB turns serial ports, under serial mode, and CH340G provides common MODEM contact signals, by for based on
Calculation machine extends asynchronous serial port or common serial equipment is directly upgraded to usb bus.The microcontroller control relay moves
Make, acquire the resistance value over the ground of each test point successively（Analog voltage drops）, and the data interlock measured in monolithic owner
Plate TLP521-1416（Controllable photo coupler part）In, it measures data and is uniformly given to A/D modular converters progress digital-to-analogue turn
It changes, comparing unit is transformed data and critical field value（Software program compiles a measurement standard value range）Compared
Compared with, and comparison result is shown to by driving chip CH340G on external display, if during open circuit, voltage 2.8V,
When short-circuit, voltage 0（Over the ground）, during rosin joint, voltage is not in the range of microcontroller sampled data.If data are not in range
Interior, computer is shown as FAIL, if data, in the range of, computer shows green PASS, so as to each test point of discriminating test plate
（The pin of SIM card and TF card）With the presence or absence of open circuit, short circuit or rosin joint phenomenon.
In the present embodiment, the power supply includes transformer, voltage-stablizer and transformation coil, and the transformer is 220V
Alternating current is converted to 12V DC electricity, and 12V DC electricity is converted to 5V direct currents by the voltage-stablizer again, and it is straight to provide 5V for microcontroller
Operating voltage is flowed, 5V direct currents are converted to 2.8V direct currents by transformation coil, and 2.8V direct currents sampling simulation electricity is provided for test board
Pressure.
In the present embodiment, the test thimble quantity is 20 needles, and that tests SIM1 has 6 needles, and that tests SIM2 has 6 needles,
Test TF card has 8 needles.
The communication apparatus knows card detection circuit and includes power supply, microcontroller STC15F2K60S2, relay and test
Thimble, test thimble and each test point on test board（The pin of SIM card and TF card）Electrical connection, microcontroller are every by acquiring
The resistance value over the ground of one test point（Analog voltage drops）, to judge that SIM card, TF card whether there is the failures such as short circuit, open circuit and rosin joint,
SIM card and TF card really are inserted into due to not having to go again, the detection of resistance value over the ground can be completed in a few seconds, efficiency is substantially carried
It rises, by taking the quantity 20 of test point as an example, detecting the time of needs can control within 10 seconds.
Card detection apparatus embodiment is known as communication apparatus described in the utility model, as shown in Figures 2 to 4, including above
The detection circuit further includes frame 1, pedestal 2, needle plate 3, quick-speed jigs 4, support plate 5, guide plate 6 and guide post 7, the needle plate 3
It is fixed on guide plate 6, the guide plate 6 is slidably disposed on guide post 7, and the guide plate 6 is fixedly connected with quick-speed jigs 4, institute
It states quick-speed jigs 4 to be fixed on frame 1, the support plate 5 is fixed on pedestal 2.
Specific operation process is：Test board 9 is placed on support plate 5, pulls quick-speed jigs 4, makes test thimble and SIM card
After being electrically connected with the pin of TF card, single-chip data acquisition is carried out, after the data for collecting all test points, and is sentenced with this
Disconnected SIM card and TF card are with the presence or absence of short circuit, open circuit and rosin joint failure.
In the present embodiment, the test thimble is arranged on needle plate 3, and the detection circuit is arranged on inside pedestal 2.Institute
Needle plate 3 is stated to connect with guide plate 6 by support column 8.
The communication apparatus knows card detection apparatus and clamps test board 9 using quick-speed jigs 4, makes test thimble and test board 9
Upper each test point electrical connection, takes plate to put plate quick and convenient.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (7)
1. a kind of communication apparatus knows card detection circuit, which is characterized in that including power supply, microcontroller STC15F2K60S2, after
Electric appliance and test thimble, the power supply provide 5V direct-current working volts and provide 2.8V direct currents for test board and adopt for microcontroller
Sample analog voltage, each thimble of testing are concatenated with a relay, and the microcontroller is by relay and test thimble with surveying
Each test point is electrically connected on test plate (panel).
2. communication apparatus according to claim 1 knows card detection circuit, which is characterized in that the microcontroller includes mainboard
TLP521-1416, comparing unit, A/D modular converters, voltage-stablizer 78L05 and driving chip CH340G, the microcontroller control after
Electric appliance acts, and acquires the resistance value over the ground of each test point successively, and the data interlock measured in monolithic mainboard
In TLP521-1416, measure data and be uniformly given to the progress digital-to-analogue conversion of A/D modular converters, comparing unit is transformed
Data are compared with critical field value, and comparison result is shown to by driving chip CH340G on external display.
3. communication apparatus according to claim 1 knows card detection circuit, which is characterized in that the power supply includes transformation
220V alternating currents are converted to 12V DC electricity by device, voltage-stablizer and transformation coil, the transformer, and the voltage-stablizer is straight 12V again
Galvanic electricity is converted to 5V direct currents, and 5V direct currents are converted to 2.8V direct currents by transformation coil.
4. communication apparatus according to claim 1 knows card detection circuit, which is characterized in that the test thimble quantity is 20
Needle, that tests SIM1 has 6 needles, and that tests SIM2 has 6 needles, and that tests TF card has 8 needles.
5. a kind of communication apparatus knows card detection apparatus, which is characterized in that detects electricity including Claims 1-4 any one of them
Road further includes frame, pedestal, needle plate, quick-speed jigs, support plate, guide plate and guide post, and the needle plate is fixed on guide plate, described to lead
Plate is slidably disposed on guide post, and the guide plate is fixedly connected with quick-speed jigs, and the quick-speed jigs are fixed on frame, institute
Support plate is stated to be fixed on pedestal.
6. communication apparatus according to claim 5 knows card detection apparatus, which is characterized in that the test thimble is arranged on needle
On plate, the detection circuit is arranged on chassis interior.
7. communication apparatus according to claim 5 knows card detection apparatus, which is characterized in that the needle plate by support column with
Guide plate connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721267578.9U CN207502652U (en) | 2017-09-29 | 2017-09-29 | A kind of communication apparatus knows card detection circuit and detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721267578.9U CN207502652U (en) | 2017-09-29 | 2017-09-29 | A kind of communication apparatus knows card detection circuit and detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207502652U true CN207502652U (en) | 2018-06-15 |
Family
ID=62499717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721267578.9U Expired - Fee Related CN207502652U (en) | 2017-09-29 | 2017-09-29 | A kind of communication apparatus knows card detection circuit and detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207502652U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113030704A (en) * | 2021-03-11 | 2021-06-25 | 山东英信计算机技术有限公司 | Mainboard test equipment, method and system and readable storage medium |
-
2017
- 2017-09-29 CN CN201721267578.9U patent/CN207502652U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113030704A (en) * | 2021-03-11 | 2021-06-25 | 山东英信计算机技术有限公司 | Mainboard test equipment, method and system and readable storage medium |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180615 Termination date: 20180929 |