CN216162045U - High-low impedance monitoring device - Google Patents
High-low impedance monitoring device Download PDFInfo
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- CN216162045U CN216162045U CN202121721220.5U CN202121721220U CN216162045U CN 216162045 U CN216162045 U CN 216162045U CN 202121721220 U CN202121721220 U CN 202121721220U CN 216162045 U CN216162045 U CN 216162045U
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Abstract
The utility model discloses a high-low impedance monitoring device, and relates to the technical field of communication. The box body is composed of a main board, a main body shell, a first connector panel and a second connector panel, wherein the main body shell, the first connector panel and the second connector panel form the box body, and the main board is arranged in the box body; the main board is provided with three J30J connector serial ports, the first connector panel is provided with a J30J connector as a power supply and signal input port, and the second connector panel is provided with two J30J connectors as an indicator light and a signal output port. The utility model has the advantages of timely data receiving and conversion, good environmental adaptability, large temperature tolerance, good vibration resistance and impact resistance, and can stably and reliably operate in a complex environment.
Description
Technical Field
The utility model relates to the technical field of communication, in particular to a high-low impedance monitoring device.
Background
At present, power supply monitoring is an indispensable management device in a power system, and can realize real-time monitoring and alarm on an input power supply; in the prior art, most of devices for monitoring power supplies are controlled by a single chip microcomputer MCU, data receiving, collecting and converting have certain delay, and the problems of instability can exist when the devices are used under the condition of complex environment.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a high-low impedance monitoring device which is timely in data receiving and conversion, good in environmental adaptability, large in temperature tolerance, good in vibration resistance and impact resistance and capable of stably and reliably operating in a complex environment.
In order to achieve the purpose, the utility model is realized by the following technical scheme: a high-low impedance monitoring device comprises a mainboard, a main body shell, a first connector panel and a second connector panel, wherein the main body shell, the first connector panel and the second connector panel form a box body, and the mainboard is arranged in the box body; the main board is provided with three J30J connector serial ports.
Preferably, the first connector panel is provided with a J30J connector as a power and signal input port.
Preferably, the second connector panel is provided with two J30J connectors as indicator lights and signal output ports.
Preferably, the main board carries the BUCK circuit, can realize 7.4V-24V voltage output, fix 5V output, estimate that the single BUCK circuit is airtight and has no heat dissipation environment can provide 8A output (namely 40W) 7 x 24h, the air-cooled heat dissipation is well done and can stably output 10A output.
Preferably, the main board bears an RC oscillation circuit, and after the low-resistance signal is input, the oscillation circuit can continuously output an oscillation signal with a certain frequency, so as to ensure signal output at the output end.
Preferably, the mainboard bears the TTL-RS485 module, effective conversion of two TTL digital levels through an internal digital circuit and RS485 serial port conversion are achieved, and the TTL-RS485 circuit has the advantages of high speed, stability, interference resistance and the like.
The utility model has the following beneficial effects: the utility model has the advantages of good performance, high stability, strong expansion capability, high portability, integrated design, good environmental adaptability, wide temperature tolerance range, good vibration resistance and impact resistance, and stable and reliable operation in complex environment, and can well meet the use requirements of users.
Drawings
The utility model is described in detail below with reference to the drawings and the detailed description;
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a first connector panel according to the present invention;
FIG. 3 is a schematic view of a second connector panel according to the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.
Referring to fig. 1 to 3, the following technical solutions are adopted in the present embodiment: a high-low impedance monitoring device comprises a mainboard 1, a main body shell 2, a first connector panel 3 and a second connector panel 4, wherein the main body shell 2, the first connector panel 3 and the second connector panel 4 form a box body, and the mainboard 1 is arranged in the box body; the main board 1 is provided with three J30J connector serial ports.
It should be noted that the first connector panel 3 is provided with a J30J connector as a power and signal input port.
In addition, the second connector panel 4 is provided with two J30J connectors as indicator lights and signal output ports.
The working principle of the specific embodiment is as follows: the power supply module is filtered by a DC 9-24V IN of a power supply input J30J interface and then input, 5V is output, and after analog filtering, the power supply module provides effective power supply protection for a TTL 485 conversion module and an Indicator Light thereof carried by the mainboard 1; the 3-way J30J connector serial port and serial port receiving and transmitting indicator lamp is arranged on the mainboard 1, the equipment monitors the input of two-way power source resistance state sources simultaneously, the configuration is high, the performance is good, the stability is high, the expansion capability is strong, the use requirement of a user can be well met, the equipment has high portability and integrated design, good environmental adaptability is realized, the temperature capacitive reactance range is large, good vibration resistance and impact resistance are realized, and the equipment can stably and reliably run in a complex environment.
The TTL-RS-485 conversion module carried on the mainboard 1 of the embodiment can realize effective conversion of TTL digital level, the module is a standard RS-485 interface and has ESD bus protection function, each RS-485 network has at least 32 nodes, a 4.7K up-pull-down resistor is arranged in each RS-485 network, a twisted pair is output, the baud rate supports 600-115200 (bps), the data delay is realized, and the delay time from receiving data to transmitting data is 30 microseconds at minimum and 100 microseconds at maximum;
the oscillation circuit carried on the main board 1 of the present embodiment is a simple RC oscillation circuit, and the oscillation frequency of the circuit can be changed according to the values of the resistor R and the capacitor C; the power supply resistance state is used as an oscillation circuit loop to form, when the oscillation circuit is in a high resistance state, the oscillation circuit is in an open circuit, no oscillation signal is output at the moment, when the oscillation circuit is in a low resistance state, the oscillation circuit is conducted, and at the moment, an oscillation signal with a certain frequency can be output; the output oscillation signal can be converted into a 485 signal through a TTL-to-RS-485 module to be output, and the high-low resistance state change of the power supply can be monitored at the moment.
This embodiment is through utilizing TTL signal characteristic, increases two way RC oscillating circuit in the internal circuit, and when the low resistance state appeared in the input signal, RC oscillating circuit can produce the high-low level of certain frequency, thereby through the signal conversion of 485 modules, thereby the realization is to the monitoring effect of equipment high-low resistance state to the output 485 signal value. The device has high stability; high compatibility and replaceability; wide voltage input and ultra-low power consumption; the high integration design, small volume and high portability; wide temperature working index; the requirements of reliability, compatibility, maintainability, testability, security, safety, environmental adaptability and the like are fully considered.
It is to be noted that, a high-low impedance monitoring device, when working 2-way full load, the power is 2.000W, the working temperature-55-70 deg.C.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. A high-low impedance monitoring device is characterized by comprising a mainboard (1), a main body shell (2), a first connector panel (3) and a second connector panel (4), wherein the main body shell (2), the first connector panel (3) and the second connector panel (4) form a box body, and the mainboard (1) is arranged in the box body; the main board (1) is provided with three J30J connector serial ports.
2. A high and low impedance monitoring device as claimed in claim 1, wherein said first connector panel (3) is provided with a J30J connector as a power and signal input port.
3. A high and low impedance monitoring device as claimed in claim 1, wherein said second connector panel (4) is provided with two J30J connectors as indicator lights and signal output ports.
4. The high-low impedance monitoring device according to claim 1, wherein the main board (1) carries a BUCK circuit, and can realize 7.4V-24V voltage output and fixed 5V output, and evaluate that the single BUCK circuit is closed without heat dissipation for 7 x 24h to provide 8A output, and the air-cooled heat dissipation is well done to stably output 10A output.
5. A high and low impedance monitoring device according to claim 1, wherein the main board (1) carries an RC oscillating circuit, and after the low impedance signal is inputted, the oscillating circuit will continuously output an oscillating signal with a certain frequency to ensure the signal output at the output terminal.
6. The high-low impedance monitoring device according to claim 1, wherein said motherboard (1) carries TTL-RS485 modules to realize effective conversion of two TTL digital levels through internal digital circuits and RS485 serial port conversion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121721220.5U CN216162045U (en) | 2021-07-28 | 2021-07-28 | High-low impedance monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121721220.5U CN216162045U (en) | 2021-07-28 | 2021-07-28 | High-low impedance monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216162045U true CN216162045U (en) | 2022-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121721220.5U Active CN216162045U (en) | 2021-07-28 | 2021-07-28 | High-low impedance monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216162045U (en) |
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2021
- 2021-07-28 CN CN202121721220.5U patent/CN216162045U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A High and Low Impedance Monitoring Device Effective date of registration: 20221118 Granted publication date: 20220401 Pledgee: Beijing Chang'an Sub branch of Beijing Construction Bank Co.,Ltd. Pledgor: BEIJING CELINKOUT INFORMATION TECHNOLOGY Co.,Ltd. Registration number: Y2022110000322 |
|
| CU01 | Correction of utility model | ||
| CU01 | Correction of utility model |
Correction item: Pledgee Correct: China Construction Bank Corporation Beijing Chang'an Sub branch False: Beijing Chang'an Sub branch of Beijing Construction Bank Co.,Ltd. Number: 49-01 Volume: 38 |