CN211402533U - Automatic module and system of patrolling and examining of multichannel voltage - Google Patents
Automatic module and system of patrolling and examining of multichannel voltage Download PDFInfo
- Publication number
- CN211402533U CN211402533U CN201921995135.0U CN201921995135U CN211402533U CN 211402533 U CN211402533 U CN 211402533U CN 201921995135 U CN201921995135 U CN 201921995135U CN 211402533 U CN211402533 U CN 211402533U
- Authority
- CN
- China
- Prior art keywords
- sampling
- electric capacity
- voltage
- multichannel
- amplifier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model provides an automatic module of patrolling and examining of multichannel voltage, includes multichannel sampling passageway and sampling electric capacity, it has first opto-coupler relay to establish ties respectively between multichannel sampling passageway and the sampling electric capacity, sampling electric capacity parallel connection has discharge device, an amplifier input is connected to the sampling end of sampling electric capacity, and a reference voltage source is connected to another input of amplifier, MCU is connected to the amplifier output, MCU still with first opto-coupler relay and discharge device control connection, MCU still is connected with first USART interface and second USART interface. The utility model also discloses an automatic system of patrolling and examining of multichannel voltage. The utility model discloses but the voltage of a large amount of batteries of short-term test in succession patrols and examines module increase test passage through the increase, is adapted to the group battery of different quantity and detects, realizes the automation and the controllability that the group battery detected, adopts electric capacity charge-discharge detection mode to have fine filtering function to undulant great detected object.
Description
Technical Field
The utility model belongs to the electronic circuit field relates to the voltage detection technique, concretely relates to automatic module and the system of patrolling and examining of multichannel voltage.
Background
The conventional battery inspection mode is characterized in that the output voltage of the battery is manually detected and recorded one by one, and has many defects, such as high labor cost, high possibility of error, difficult data analysis and management, low efficiency, large error of inspection time interval points, incapability of simultaneous detection of multiple paths, real-time detection, incapability of remote inspection and the like.
SUMMERY OF THE UTILITY MODEL
For overcoming the technical defect that prior art exists, the utility model discloses an automatic module and system of patrolling and examining of multichannel voltage.
Automatic module of patrolling and examining of multichannel voltage, including multichannel sampling passageway and sampling electric capacity, it has first opto-coupler relay to establish ties respectively between multichannel sampling passageway and the sampling electric capacity, sampling electric capacity parallel connection has discharge device, an amplifier input is connected to the sample end of sampling electric capacity, and a reference voltage source is connected to another input of amplifier, MCU is connected to the amplifier output, MCU still with first opto-coupler relay and discharge device control connection, MCU still is connected with first USART interface and second USART interface.
Preferably, the discharge device is a second optocoupler relay.
Preferably, a current limiting resistor is connected in series between the sampling channel and the first optocoupler relay.
Preferably, the MCU is STM32F373VCT 6.
Preferably, the amplifier is AD 628.
The invention also discloses a multi-path voltage automatic inspection system which comprises a plurality of automatic inspection modules and a cascade RS485 interface, wherein second USART interfaces of the automatic inspection modules are connected with the RS485 interface, and the RS485 interface is connected with a server through a WIFI transmission module.
Adopt automatic module and the system of patrolling and examining of multichannel voltage, the voltage of a large amount of batteries of short-term test in succession patrols and examines module increase in quantity sense passage through the increase, is adapted to the group battery of different quantity and detects, realizes the automation and the controllability that the group battery detected, adopts electric capacity charge-discharge detection mode to have fine filtering function to undulant great detected object to multichannel uniformity and the one-way accuracy control in the measurement process have been guaranteed.
Drawings
Fig. 1 is a schematic diagram of an embodiment of the multi-path voltage automatic inspection system of the present invention;
fig. 2 is a schematic diagram of an embodiment of the multi-path voltage automatic inspection module according to the present invention;
in the figure, reference signs are AMP-amplifier, R-current-limiting resistor, C-sampling capacitor, CHANNEL-sampling CHANNEL, VREF-reference voltage source, G1-first optical coupler relay, G2-second optical coupler relay, USART 1-first USART interface and USART 2-second USART interface.
Detailed Description
The following describes the present invention in further detail with reference to the accompanying drawings.
Automatic module of patrolling and examining of multichannel voltage, as shown in fig. 2, including multichannel sampling passageway and sampling electric capacity, it has first opto-coupler relay to establish ties respectively between multichannel sampling passageway and the sampling electric capacity, sampling electric capacity parallel connection has discharge device, an amplifier input is connected to the sample end of sampling electric capacity, and a reference voltage source is connected to another input of amplifier, MCU is connected to the amplifier output, MCU still with first opto-coupler relay and discharge device control connection, MCU still is connected with first USART interface and second USART interface.
The utility model discloses mainly utilize with the detection of a large amount of direct current battery, for example the in-process of mill's production battery is to the detection of battery voltage, or for the voltage detection of a plurality of parallelly connected or series connection batteries of main equipment power supply etc..
During detection, each sampling channel is respectively connected with positive and negative electrodes of different storage batteries, the state of a first optocoupler relay of each sampling channel is controlled by an MCU (single chip microcomputer), the optocoupler relay of the channel is opened during sampling, the battery charges the voltage of a sampling capacitor for a certain time and then inputs the voltage into the input end of an amplifier, the other input end of the amplifier is connected with a reference voltage source, the amplifier compares the voltage difference value of the two input ends and amplifies the voltage difference value to input the voltage into the MCU, the MCU can select STM32F373VCT6, the chip is a 32-bit ARM processor based on ARM Cortex-M4, a flash memory with 256KB and a 32KBSRAM, 16-bit and 32-bit timers, a 16-bit differential sampling ADC and 3-way USART interfaces, and by utilizing the 16-bit ADC of the chip, the analog voltage output by the amplifier can be directly input into the MCU for analog-to-digital conversion and.
After sampling calculation of the sampling channel is completed, the MCU controls the discharge device connected with the sampling capacitor in parallel to discharge electric charges on the sampling capacitor, as shown in fig. 1, the discharge device can also adopt an optocoupler relay switch, and after the discharge is completed, the discharge device is disconnected, and voltage detection of the next sampling channel is continued.
The capacitance selection as a core component is particularly important. The capacitance value and the temperature drift coefficient of the sampling capacitor are very critical parameters, and can adopt X7R series, the rated voltage is 100V, the capacitance value is 4.7uF, the precision is +/-10%, and the sampling capacitor is packaged into a 1210-th patch capacitor. The operational amplifier can be an AD628 differential amplifier supporting differential operational amplification, the reference voltage source can be an industrial-grade chip REF192, 2.500V voltage generated by the industrial-grade chip REF192 is used as reference voltage to be input into the amplifier and the single chip microcomputer, an AT25128B EEPROM memory chip can be used as a memory space for calibrating channel data and recording differential data to be connected with the single chip microcomputer, and an SPI FLASH 25Q128JVSQ can also be used as a data memory space. And a current-limiting resistor can be connected in series between the sampling channel and the first optocoupler relay, and a 1% high-precision low-temperature drift resistor is preferably adopted.
When selecting STM32F373VCT6 as the singlechip, according to its description, can be connected the Pin22 and the Pin52 of this chip with the analog voltage output of amplifier, arbitrary 24 Pin feet that can regard as GPIO mouth are connected with the control end of opto-coupler relay, PA9(Pin 68), PA10(Pin 69) foot and PA2(Pin25), PA3(Pin 26) foot is as first USART interface and second USART interface respectively, wherein first USART interface mainly is used for with system's serial ports connection, when not connecting WIFI, can regard as the output of sampling information, for example can be used for directly linking to each other with PC etc., look over sampling information.
The second USART interface of the inspection module can be connected with an RS485 interface, then is connected with the server through the WIFI transmission module, communicates with the Internet through the server to transmit data, and transmits the data to the mobile phone, the notebook computer and the tablet computer to various terminals.
Each multi-path voltage automatic inspection module can collect a plurality of battery voltages, and if a single inspection module cannot meet the requirement, the plurality of inspection modules can be connected with a cascade RS485 interface, as shown in fig. 1, second USART interfaces of the plurality of automatic inspection modules are connected with the RS485 interface, and the RS485 interface is connected with a server through a WIFI transmission module, so that the battery detection number is expanded; the WIFI transmission module may employ a chip AM335X based on ARMA 8.
The utility model discloses can be applicable to and detect various battery voltage, also be applicable to and detect other a plurality of direct current voltage value.
Adopt automatic module and the system of patrolling and examining of multichannel voltage, the voltage of a large amount of batteries of short-term test in succession patrols and examines module increase in quantity sense passage through the increase, is adapted to the group battery of different quantity and detects, realizes the automation and the controllability that the group battery detected, adopts electric capacity charge-discharge detection mode to have fine filtering function to undulant great detected object to multichannel uniformity and the one-way accuracy control in the measurement process have been guaranteed.
In the foregoing, the preferred embodiments of the present invention, if not obviously contradictory or based on a certain preferred embodiment, can be combined and used by any superposition, the specific parameters in the embodiments and examples are only for clearly expressing the utility model verification process of the utility model, and are not used for limiting the patent protection scope of the present invention, the patent protection scope of the present invention is still based on the claims, and all the equivalent structural changes made by the contents of the specification and the drawings of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides an automatic module of patrolling and examining of multichannel voltage, its characterized in that includes multichannel sampling passageway and sampling electric capacity, it has first opto-coupler relay to establish ties respectively between multichannel sampling passageway and the sampling electric capacity, sampling electric capacity parallel connection has discharge device, an amplifier input is connected to the sampling end of sampling electric capacity, and a reference voltage source is connected to another input of amplifier, MCU is connected to the amplifier output, MCU still with first opto-coupler relay and discharge device control connection, MCU still is connected with first USART interface and second USART interface.
2. The multi-path voltage automatic inspection module according to claim 1, wherein the discharge device is a second optocoupler relay.
3. The multi-path voltage automatic inspection module according to claim 1, wherein a current limiting resistor is connected in series between the sampling channel and the first optocoupler relay.
4. The multi-path voltage automatic inspection module according to claim 1, wherein the MCU is STM32F373VCT 6.
5. The multi-path voltage automatic inspection module according to claim 1, wherein the amplifier is an AD 628.
6. The automatic multi-path voltage inspection system is characterized by comprising a plurality of automatic inspection modules and cascaded RS485 interfaces according to any one of claims 1 to 5, wherein the second USART interfaces of the automatic inspection modules are connected with the RS485 interfaces, and the RS485 interfaces are connected with a server through a WIFI transmission module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921995135.0U CN211402533U (en) | 2019-11-19 | 2019-11-19 | Automatic module and system of patrolling and examining of multichannel voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921995135.0U CN211402533U (en) | 2019-11-19 | 2019-11-19 | Automatic module and system of patrolling and examining of multichannel voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211402533U true CN211402533U (en) | 2020-09-01 |
Family
ID=72212625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921995135.0U Active CN211402533U (en) | 2019-11-19 | 2019-11-19 | Automatic module and system of patrolling and examining of multichannel voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211402533U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115236534A (en) * | 2022-07-29 | 2022-10-25 | 苏州浪潮智能科技有限公司 | Server RTC battery voltage detection device and detection method |
-
2019
- 2019-11-19 CN CN201921995135.0U patent/CN211402533U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115236534A (en) * | 2022-07-29 | 2022-10-25 | 苏州浪潮智能科技有限公司 | Server RTC battery voltage detection device and detection method |
| CN115236534B (en) * | 2022-07-29 | 2023-11-14 | 苏州浪潮智能科技有限公司 | Device and method for detecting voltage of RTC battery of server |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102216793B (en) | System and method for measuring battery internal resistance | |
| CN107677964B (en) | A kind of New energy automobile motor battery analog detection method | |
| CN203688636U (en) | System for detecting voltage of single battery unit of series battery pack | |
| CN102967831B (en) | On-line detection system and detection method of lead-acid storage battery performance | |
| CN202494742U (en) | Multi function electric power quality collecting analyzer | |
| CN105044622A (en) | Test instrument power supply power self-detection device and self-detection method | |
| CN101144837A (en) | Voltage detection circuit and control method | |
| CN211402533U (en) | Automatic module and system of patrolling and examining of multichannel voltage | |
| CN207457458U (en) | A kind of accumulator wireless inspection device | |
| CN103852726A (en) | Battery electric quantity detection device | |
| CN105676053B (en) | A kind of touch screen defect detecting system | |
| CN203519044U (en) | Device used for measuring voltage and temperature of lithium battery pack | |
| CN203630318U (en) | Test system for power system switching power supply module | |
| CN105202987A (en) | Automatic part scoring equipment for digital caliper and working method of automatic part scoring equipment | |
| CN206710499U (en) | A kind of current data harvester based on Rogowski coil | |
| CN105319514A (en) | An accumulator capacity detection method | |
| CN204203438U (en) | Storage battery discharge tester | |
| CN103499368B (en) | One carries out voltage and thermometric device to lithium battery group | |
| CN104535875A (en) | Electric power parameter wireless monitoring terminal for dynamic simulation experimental platform of electrical power system | |
| CN104730461A (en) | Series battery pack information collection and display apparatus | |
| CN104569841A (en) | Aging detection method and device for battery pack | |
| CN105698925B (en) | Method, system and the mobile terminal of uitraviolet intensity detection | |
| CN203551127U (en) | BMS adopting thermocouple for temperature measurement | |
| Sun et al. | Design of active equalizer for lithium-ion battery pack based on double-tiered modular resonance | |
| CN208158632U (en) | Electric energy metering system data intelligence processing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |