CN203072169U - Wireless communication module performance evaluation tool with high reliability - Google Patents

Wireless communication module performance evaluation tool with high reliability Download PDF

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Publication number
CN203072169U
CN203072169U CN2013200248031U CN201320024803U CN203072169U CN 203072169 U CN203072169 U CN 203072169U CN 2013200248031 U CN2013200248031 U CN 2013200248031U CN 201320024803 U CN201320024803 U CN 201320024803U CN 203072169 U CN203072169 U CN 203072169U
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China
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circuit
links
mcu
wireless communication
communication module
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CN2013200248031U
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邱文浩
王开伟
李仁庆
崔杨鹭
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Fujian Raynen Technology Co Ltd
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FUJIAN RAYNEN ELECTRONICS Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Abstract

The utility model discloses a wireless communication module performance evaluation tool with high reliability. The wireless communication module performance evaluation tool with the high reliability comprises a keyboard input circuit, an ADC circuit, a MCU, a serial communication circuit, a LCD circuit, a power supply circuit and an indication circuit. The power supply circuit converts a high voltage power supply into a low voltage power supply, is connected with the ADC circuit, the MCU, the serial communication circuit, the LCD circuit and the indication circuit and provides working power for the five circuits respectively. The keyboard input circuit and an output port of the ADC circuit are connected with an input port of the MCU. A communication port of the LCD circuit and the indication circuit are connected with the output port of the MCU. The communication port of the serial communication circuit is connected with the input/output port of the MCU. The tool has the advantages that cost is low; energy saving and environmental protection are achieved; a receiving sensitivity is high; a function is strong; the new function can be added through upgrading software; usage is convenient; the tool is safe and reliable; a service life is long and so on. The tool is mainly used for product testing of a production line.

Description

High reliability wireless communication module Performance Evaluation instrument
Technical field
The utility model belongs to electronic information technical field, belongs to integrated circuit (IC) products designing technique and the communication technology.
Background technology
In the production process of wireless communication module, need to use the wireless communication module that instruments such as frequency spectrograph, network analyzer, oscilloscope and universal instrument and computer go to measure on the production line and whether pass, and whole process all is people's hand control and record; Have according to the parameter shortcoming of using said method to measure wireless module: an instrument can only be tested a kind of parameter, directly causes the testing time to increase; The use instrument is many, complex operation, and fund input is big; Record data are loaded down with trivial details makes mistakes easily and too bothers etc. when testing the communication distance of production module out of doors, can not satisfy the requirement of high efficiency.
Summary of the invention
The purpose of this utility model be to provide a kind of measurement data accurately, the data packet transmission of guaranteeing wireless communication module is correct, be convenient for carrying, be easy to use, high reliability wireless communication module Performance Evaluation instrument that cost is low.
High reliability wireless communication module Performance Evaluation instrument, comprise the keyboard input circuit, the ADC(A-D converter) circuit, MCU (micro-control unit), serial communication circuit, the LCD(LCD) circuit, power circuit, indicating circuit, power circuit with high voltage source change into low-tension supply respectively with adc circuit, MCU, serial communication circuit, the LCD circuit, indicating circuit links to each other and provides working power for these five circuit, the keyboard input circuit, the delivery outlet of adc circuit links to each other with the MCU input port, the port of LCD circuit, indicating circuit links to each other with the delivery outlet of MCU, and the port of serial communication circuit links to each other with the I/O port of MCU.
Described power circuit comprises LDO(low pressure linear voltage regulator) two-stage voltage stabilizing circuit, charging circuit, battery PH2A, battery monitoring circuit and power indicating circuit, external power supply PS1 links to each other with battery by charging circuit and is its charging, external power supply links to each other with LDO two-stage voltage stabilizing circuit first order input by switch S 1, the LDO two-stage voltage stabilizing circuit first order is output as 5V and links to each other with power indicating circuit, and battery two ends batteries in parallel connection supervisory circuit links to each other.Whether power supply indicator circuit prompting power supply is supplied with normal, when plugging in the adapter use, and the circuit normal power supply, and be battery charge simultaneously, and battery-powered when adapter is extracted, need not the manual switch powering mode.Battery monitoring circuit can show the dump energy of battery, avoids the battery operated permanent damage that causes at the state of crossing low discharge, can point out the user to make corresponding operation simultaneously when battery electric quantity is not enough.
Described battery adopts a kind of lithium battery of high power capacity, provides reliable power supply to supply with, and guarantees the circuit operate as normal.
Described adc circuit comprises resistance R 8, R9, R10, R11, R12, R13, R14, capacitor C 19, metal-oxide-semiconductor M1 and chip OP, one termination 3.3V of resistance R 13, the other end links to each other with an end of resistance R 14 and the 4th pin of metal-oxide-semiconductor M1, first of metal-oxide-semiconductor M1, second and tripod ground connection, the 5th of metal-oxide-semiconductor M1, the 6th, the 7th links to each other with an end of resistance R 12 with octal, the other end of R12 links to each other with the end of resistance R 11 and R8, the other end ground connection of R11, the other end of R8 links to each other with first pin of chip OP, the crus secunda ground connection of chip OP, the tripod of chip OP links to each other with the end of R9 and R10, the other end ground connection of R9, the other end of R10 links to each other with the 4th pin of chip OP, the termination power 3.3V of the 5th pin of chip OP and C19, the other end ground connection of C19.
Described MCU adopts 16 high speed processors, is excellent with the PIC33FJ128MC506A single-chip microcomputer.The communication of wireless communication module needs the transfer of data of two-forty, the device of low operating frequency can not meet the demands, need to use the high intelligent chip control entire circuit of device operating frequency and realize that two transmitting-receivings between the wireless communication module reply, can not need to change hardware device by software upgrading to adapt to follow-up research and development demand.
Advantage of the present utility model is with man-machine interface, the communication technology, Digital Signal Processing, computer technology is one, the design of employing digitizer, have energy-conservation, environmental protection, accept highly sensitive, powerful, can increase new function by software upgrading, the convenient use, safe and reliable, the long remarkable advantage that waits of life-span, can replace multiple testing equipment, break away from heavy tester, environment uses wireless communication module Performance Evaluation instrument directly to measure the communication distance of wireless communication module out of doors, do not need to carry PC, only just can measure all properties of wireless communication module with a high reliability wireless communication module Performance Evaluation instrument, save a large amount of costs.
And high reliability wireless communication module Performance Evaluation instrument can be exempted loaded down with trivial details instrument use fully, can raise the efficiency, and its input cost is extremely low, only for buying the one thousandth of above-mentioned instrument.
Description of drawings
Fig. 1 is circuit block diagram of the present utility model;
Fig. 2 is power circuit principle figure of the present utility model;
Fig. 3 is ADC Acquisition Circuit schematic diagram of the present utility model;
Fig. 4 is circuit theory diagrams of the present utility model;
Fig. 5 is software flow block diagram of the present utility model.
Embodiment
Now be described in detail embodiment of the present utility model in conjunction with Figure of description.
As shown in Figure 1, high reliability wireless communication module Performance Evaluation instrument comprises the keyboard input circuit, the ADC(A-D converter) circuit, MCU (micro-control unit), serial communication circuit, the LCD(LCD) circuit, power circuit, indicating circuit, power circuit with high voltage source change into low-tension supply respectively with adc circuit, MCU, serial communication circuit, the LCD circuit, indicating circuit links to each other and provides working power for these five circuit, the keyboard input circuit, the delivery outlet of adc circuit links to each other with the MCU input port, the port of LCD circuit, indicating circuit links to each other with the delivery outlet of MCU, and the port of serial communication circuit links to each other with the I/O port of MCU.
As shown in Figure 2, described power circuit comprises LDO(low pressure linear voltage regulator) two-stage voltage stabilizing circuit, charging circuit, battery PH2A, battery monitoring circuit and power indicating circuit, external power supply PS1 links to each other with battery by charging circuit and is its charging, external power supply links to each other with LDO two-stage voltage stabilizing circuit first order input by switch S 1, the LDO two-stage voltage stabilizing circuit first order is output as 5V and links to each other with power indicating circuit, and battery two ends batteries in parallel connection supervisory circuit links to each other.Whether power supply indicator circuit prompting power supply is supplied with normal, when plugging in the adapter use, and the circuit normal power supply, and be battery charge simultaneously, and battery-powered when adapter is extracted, need not the manual switch powering mode.Battery monitoring circuit can show the dump energy of battery, avoids the battery operated permanent damage that causes at the state of crossing low discharge, can point out the user to make corresponding operation simultaneously when battery electric quantity is not enough.
Described battery adopts a kind of lithium battery of high power capacity, provides reliable power supply to supply with, and guarantees the circuit operate as normal.
As shown in Figure 3, described adc circuit comprises resistance R 8, R9, R10, R11, R12, R13, R14, capacitor C 19, metal-oxide-semiconductor M1 and chip OP, one termination 3.3V of resistance R 13, the other end links to each other with an end of resistance R 14 and the 4th pin of metal-oxide-semiconductor M1, first of metal-oxide-semiconductor M1, second and tripod ground connection, the 5th of metal-oxide-semiconductor M1, the 6th, the 7th links to each other with an end of resistance R 12 with octal, the other end of R12 links to each other with the end of resistance R 11 and R8, the other end ground connection of R11, the other end of R8 links to each other with first pin of chip OP, the crus secunda ground connection of chip OP, the tripod of chip OP links to each other with the end of R9 and R10, the other end ground connection of R9, the other end of R10 links to each other with the 4th pin of chip OP, the termination power 3.3V of the 5th pin of chip OP and C19, the other end ground connection of C19.
Described MCU adopts 16 high speed processors, is excellent with the PIC33FJ128MC506A single-chip microcomputer.The communication of wireless communication module needs the transfer of data of two-forty, the device of low operating frequency can not meet the demands, need to use the high intelligent chip control entire circuit of device operating frequency and realize that two transmitting-receivings between the wireless communication module reply, can not need to change hardware device by software upgrading to adapt to follow-up research and development demand.The course of work:
Introduce the course of work of the present utility model in conjunction with Fig. 4 and Fig. 5, earlier tested RF communication module is inserted high reliability wireless communication module assessment tool, power-on then, gather the virtual voltage of tested RF communication module, when the electric current of tested module during in the mA rank, I/O mouth control metal-oxide-semiconductor M1 is conducting state, electric current flows through metal-oxide-semiconductor M1, obtain sampled voltage at R12 (1.1 Ω) sampling resistor, and the electric current of tested module is when the uA rank, IO mouth control metal-oxide-semiconductor is off state, electric current only flows through R11 (100K Ω) sampling resistor, and obtaining sampled voltage at R11 (100K Ω) resistance, the magnitude of voltage that MCU obtains from the ADC Acquisition Circuit is converted to binary numeral to be judged for program, draws corresponding real-time current value.
Proofreading and correct measured parameter has: emission current, received current, sleep current.
1, received current:
The received current of module is that long term maintenance is a scope, whether receiving data independence with module, owing to be that linear (fluctuating error is very little up and down, can ignore), can directly use oscilloscope or universal instrument directly read magnitude of voltage or current value, at first use different instruments repeatedly to measure, get the maximum distribution scope that it just too distributes, with this current value in order to as discrimination standard.
Measuring process is as follows:
At first, allow MCU make tested module be in accepting state, open ADC then and gather voltage, with gather virtual voltage, divided by through the multiplication factor after the operational amplifier, again divided by the sampling resistor value of reality, process software is modified to the reference current (deviation is little before revising back numerical value and correction usually) of reference, tests a plurality of modules, verifies whether its received current is consistent, if test result is consistent with instruments such as use universal instrument, oscilloscopes, think that then calibration finishes.
2, emission current:
Because the wireless receiving and dispatching time of high-frequency signal is very short, the current/voltage value that instruments such as universal instrument catch is mean value, and the voltage/current the during module of need gathering emission wireless signal is moment, so use universal instrument not meet the demands, need to use the oscilloscope capture module waveform (similar square wave) that moment rises when the emission wireless signal, the voltage waveform crest that captures is smooth basically, fluctuates ± 2mV, and this voltage fluctuation can be ignored; At first make module be in emission state, drive ADC acquisition function instruction in the MCU sheet after then little time-delay a period of time rapidly, with gather virtual voltage, divided by the multiplication factor after the process operational amplifier, again divided by the sampling resistor value of reality, through drawing emission current accurately after the software correction, because principle is in full accord with received current, the software correction value is as the criterion according to the correction value of received current, the emission current that draws is the same with the value that captures from oscilloscope (using different oscilloscope tests), thinks that calibration finishes.
3, sleep current:
Since sleep current be the uA level other, can not pass through R12 (1.1 Ω) as received current and emission current and draw sampled voltage (because the change in voltage scope is too little, with respect to the uA rank too mistake is arranged), so use the metal-oxide-semiconductor M1 of MCU to control its shutoff, allow electric current only flow through the sampling resistor of R11 (100K Ω), increase variable range, just begin then its voltage acquisition; At first, allow MCU make tested module be in sleep state, open ADC then and gather voltage, with gather virtual voltage, divided by through the multiplication factor after the operational amplifier, again divided by the sampling resistor value of reality, process software is modified to the reference current (deviation is little before revising back numerical value and correction usually) of reference, tests a plurality of modules, verifies whether its sleep current is consistent, if test result is consistent with instruments such as use universal instrument, oscilloscopes, think that then calibration finishes.
Simplify current measurement:
Need use sleep current and received current and the emission current that needs to use oscilloscope to catch that universal instrument is measured, only need use this instrument just can make things convenient for exactly and measure; With the test sleep current be example,
Test products normally needs to use several even tens Tai Wanbiao measurement on production line, these universal instruments need guarantee that each data that record all is benchmark, and the different benchmark of different manufacturers are different, and this instrument only need be at the good benchmark of the verification of dispatching from the factory, can only use a testing tool to test above-mentioned three kinds of electric currents, all be to gather voltage data by ADC to draw corresponding current value via the computing of MCU software again, and do not need to use heavy and the high oscilloscope of price, and use oscilloscope measurement to need the seizure again of each waveform, this instrument can be automatic, real-time demonstration, and directly demonstrate the current value data, reduced makeing mistakes because of artificial observation oscilloscope magnitude of voltage.
Simplifying the module transmitting power measures:
The transmitting power of measurement module if desired, need to use frequency spectrograph to catch waveform, and need usually manually to catch, parameters such as frequency manually are set, bother very much, and frequency spectrograph are expensive, be difficult to be applied to high efficiency production test, and this instrument of use only need connect attenuator to coaxial cable, receives the RF module of carrying on the plate again.Just transmission power level that can measurement module; Because the RF module of carrying on the plate can directly be imported transmitting power less than the wireless signal of+10dBm, equal and can directly export corresponding power two value parameters to MCU identification, MCU can carry the information that the RF module is returned according to plate, differentiate real-time transmission power level through overcorrect, do not need to use expensive frequency spectrograph, since with low cost, can drop into many playscripts with stage directions instrument measure batch, enhance productivity greatly.
The communication distance of test module:
The measurement of general module communication distance is to need to use computer to send data, is sent on the module through some transition instruments, at this moment needs two instruments, under different distances, measure, need trial very repeatedly, finally could confirm communication distance, use laptop computer, heaviness and efficient are low; And this instrument of use, light simple, can the real time discriminating module whether normally accept data, the gauger only need observe this instrument and show change in information, just know under which kind of distance and learn whether communication is normal, whether this distance is maximum communication distance, greatly facilitates gauger's measurement.
The utility model is as an integrated multifunction, intelligentized embedded device, mainly for the production of the product test of line.

Claims (5)

1. high reliability wireless communication module Performance Evaluation instrument, it is characterized in that: comprise the keyboard input circuit, adc circuit, MCU, serial communication circuit, the LCD circuit, power circuit, indicating circuit, power circuit with high voltage source change into low-tension supply respectively with adc circuit, MCU, serial communication circuit, the LCD circuit, indicating circuit links to each other and provides working power for these five circuit, the keyboard input circuit, the delivery outlet of adc circuit links to each other with the MCU input port, the port of LCD circuit, indicating circuit links to each other with the delivery outlet of MCU, and the port of serial communication circuit links to each other with the I/O port of MCU.
2. according to the described high reliability wireless communication module of claim 1 Performance Evaluation instrument, it is characterized in that: described power circuit comprises LDO two-stage voltage stabilizing circuit, charging circuit, battery, battery monitoring circuit and power indicating circuit, external power supply links to each other with battery by charging circuit and is its charging, external power supply links to each other with LDO two-stage voltage stabilizing circuit first order input by switch, the LDO two-stage voltage stabilizing circuit first order is output as 5V and links to each other with power indicating circuit, and battery two ends batteries in parallel connection supervisory circuit links to each other.
3. according to the described high reliability wireless communication module of claim 2 Performance Evaluation instrument, it is characterized in that: described battery adopts a kind of lithium battery of high power capacity.
4. according to the described high reliability wireless communication module of claim 1 Performance Evaluation instrument, it is characterized in that: described adc circuit comprises resistance R 8, R9, R10, R11, R12, R13, R14, capacitor C 19, metal-oxide-semiconductor M1 and chip OP, one termination 3.3V of resistance R 13, the other end links to each other with an end of resistance R 14 and the 4th pin of metal-oxide-semiconductor M1, first of metal-oxide-semiconductor M1, second and tripod ground connection, the 5th of metal-oxide-semiconductor M1, the 6th, the 7th links to each other with an end of resistance R 12 with octal, the other end of R12 links to each other with the end of resistance R 11 and R8, the other end ground connection of R11, the other end of R8 links to each other with first pin of chip OP, the crus secunda ground connection of chip OP, the tripod of chip OP links to each other with the end of R9 and R10, the other end ground connection of R9, the other end of R10 links to each other with the 4th pin of chip OP, the termination power 3.3V of the 5th pin of chip OP and C19, the other end ground connection of C19.
5. according to the described high reliability wireless communication module of claim 1 Performance Evaluation instrument, it is characterized in that: described MCU adopts 16 high speed processors.
CN2013200248031U 2013-01-17 2013-01-17 Wireless communication module performance evaluation tool with high reliability Active CN203072169U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106878864A (en) * 2017-03-03 2017-06-20 广东欧珀移动通信有限公司 Power circuit and audio frequency apparatus
CN111478445A (en) * 2020-04-27 2020-07-31 蒋知秋 Intelligent communication and power supply system and method based on MCU control module

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106878864A (en) * 2017-03-03 2017-06-20 广东欧珀移动通信有限公司 Power circuit and audio frequency apparatus
CN106878864B (en) * 2017-03-03 2020-07-10 Oppo广东移动通信有限公司 Power supply circuit and audio device
CN111478445A (en) * 2020-04-27 2020-07-31 蒋知秋 Intelligent communication and power supply system and method based on MCU control module

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Owner name: FUJIAN RAYNEN TECHNOLOGY CO., LTD.?

Free format text: FORMER NAME: FUJIAN RAYNEN ELECTRONICS CO., LTD.

CP03 Change of name, title or address

Address after: Copper Road Software Avenue Gulou District of Fuzhou city in Fujian province 350000 Software Park No. 89 C District No. 26 building three layer A

Patentee after: FUJIAN RAYNEN TECHNOLOGY CO., LTD.

Address before: Copper Road Software Avenue Gulou District of Fuzhou city in Fujian province 350000 Software Park No. 89 C District No. 26

Patentee before: Fujian Raynen Electronics Co., Ltd.