CN211791548U

CN211791548U - Special digital signal monitoring demodulation unit

Info

Publication number: CN211791548U
Application number: CN202020584530.6U
Authority: CN
Inventors: 朱晓统; 富大鹏; 秋军
Original assignee: Shenzhen Kirisun Data Technology Co ltd
Current assignee: Shenzhen Kirisun Data Technology Co ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2020-10-27
Anticipated expiration: 2030-04-17

Abstract

The utility model discloses a special digital signal monitoring demodulation unit, include: frame, industrial computer, many mouthfuls of switches, codec module, LNA receive divide circuit, 3G receiver, scanning receiver and digital intercom codec module, LNA receive divide the circuit connection have the antenna, LNA receive divide the circuit and be connected with digital intercom codec module and codec module. The utility model discloses a different codec module is connected to many mouthfuls of switches, realizes the multichannel setting to receive the digital information that divides the circuit to gather through the LNA and carry out the demodulation of shunting and decode, thereby realize multiple digital signal's demodulation with a set of equipment and decode, for current product, can improve the integrated level, be convenient for set up and manage.

Description

Special digital signal monitoring demodulation unit

Technical Field

The utility model relates to a radio field especially relates to a special digital signal monitoring demodulation unit.

Background

With the rapid development of radio technology, devices that operate using digital signals are constantly emerging. Such devices have faster transmission speeds, shorter propagation times, larger frequency ranges of use, more advanced propagation methods, and more hidden transmitter locations, which present significant challenges to radio management.

The existing digital detection demodulation equipment on the market at present is mainly divided into two types, one type is general, a radio signal is manually or automatically set into a determined digital demodulation mode, parameters such as a related baud rate and the like need to be set, and the signal is demodulated into a bit stream. However, the system is huge and inconvenient because the system needs additional software or options for restoring the text or the voice information. The other type is a special type, generally, the equipment can only process single type digital signals, the number of channels is small and cannot be expanded, remote management cannot be performed through a network, the integrated use by a user is inconvenient, and the flexibility and the comprehensive processing capability of the signals are insufficient.

Accordingly, the prior art is deficient and needs improvement.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of prior art, provide a special digital signal monitoring demodulation unit.

The technical scheme of the utility model as follows: there is provided a dedicated digital signal monitoring demodulation unit including: the frame, set up in inside industrial computer of frame, with many mouthfuls of switches that the industrial computer is connected, with a plurality of codec modules that many mouthfuls of switches are connected, with LNA that the industrial computer is connected receive divide the circuit, with LNA receive divide the circuit and reach 3G receiver that the industrial computer is connected, with LNA receive divide the circuit and scan receiver that the industrial computer is connected and with the digital intercom codec module that the industrial computer is connected, LNA receives and divides the circuit to be connected with the antenna, LNA receives and divides the circuit and is connected with digital intercom codec module and codec module.

Furthermore, the encoding and decoding modules are FSK, LORA, FM, DMR and dPMR demodulation and decoding modules respectively.

Further, the industrial personal computer is connected with a router.

Further, the router is provided with a cascade network port, and other devices are cascaded through the cascade network port.

Further, the industrial personal computer communicates with the router through a LAN1, the industrial personal computer communicates with the multi-port switch through a LAN2, and the LAN1 and the LAN2 are isolated from each other.

Further, the industrial computer is connected with power module, power module includes: the power supply circuit and the voltage reduction power supply circuit are connected with the power supply circuit.

According to the above technical scheme, the utility model discloses a different codec module is connected to many mouthfuls of switches, realizes the multichannel setting to receive the digital information that divides the circuit to gather through the LNA and carry out demodulation decoding along separate routes, thereby realize multiple digital signal's demodulation decoding with a set of equipment, for current product, can improve the integrated level, be convenient for set up and manage.

Drawings

Fig. 1 is a block diagram of the present invention.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, the present invention provides a special digital signal monitoring and demodulating unit, which includes: the frame, set up in inside industrial computer of frame, with many mouthfuls of switches that the industrial computer is connected, with a plurality of codec modules that many mouthfuls of switches are connected, with LNA that the industrial computer is connected receive divide the circuit, with LNA receive divide the circuit and reach 3G receiver that the industrial computer is connected, with LNA receive divide the circuit and scan receiver that the industrial computer is connected and with the digital intercom codec module that the industrial computer is connected, LNA receives and divides the circuit to be connected with the antenna, LNA receives and divides the circuit and is connected with digital intercom codec module and codec module. The equipment can quickly judge the type of the received signals, can quickly judge various signals of FSK, LORA, FM, DMR and dPMR, and then completes the shunting process through the LNA receiving and splitting circuit. The LNA receiving and splitting circuit has a bottom noise amplifying function, and can amplify signals under low bottom noise and signals which cannot be found by the scanning receiver and then distribute the signals to the corresponding coding and decoding modules for decoding. The equipment adopts a rack-mounted design and can be directly placed into the cabinet.

The coding and decoding modules are FSK, LORA, FM, DMR and dPMR demodulation and decoding modules respectively. The equipment has the function of multi-system full-channel real-time value watching, and a plurality of different coding and decoding modules can perform real-time polling watching on various system signals, so that the signals can be captured at the first time and are decoded.

The industrial personal computer is connected with a router. The equipment can be operated locally and independently, and can also realize the networking function through the router and be accessed into the integrated platform.

The router is provided with a cascade network port, and other equipment is cascaded through the cascade network port so as to support the cascade use of the equipment, other products and backup power supply equipment.

The industrial personal computer is connected with the router through a LAN1 (local area network), the industrial personal computer is communicated with the multi-port switch through a LAN2 (local area network), and the LAN1 and the LAN2 are isolated from each other. The industrial personal computer is communicated with the router through the LAN1 and is used for cascading other equipment, mainly to the outside; communicates with the multiport switch through LAN2 to connect the processing modules, primarily internally. Two circuits are mutually isolated and do not interfere with each other, and the stability of the equipment is improved.

The industrial computer is connected with power module, power module includes: the power supply circuit and the voltage reduction power supply circuit are connected with the power supply circuit.

The utility model discloses can demodulate multiple digital signal such as decoding FSK, LORA, DMR, dPMR, can realize multichannel simultaneous working, support to cascade and expand the channel number, and have higher sensitivity.

After receiving the radio frequency signal through the antenna, the LNA receiving and splitting circuit performs signal splitting. One path of the branched signals is input to a 3G receiver and used for fixed point frequency monitoring; one path is input to a scanning receiver and is used for scanning in a frequency band of 9KHz-6 GHz; one path is input into a digital interphone decoding module to perform demodulation and decoding of DMR and DDM; finally, the signals are respectively input into the coding and decoding modules to demodulate and decode signals of FSK, LORA, FM and dPMR communication technology systems. And finally, feeding back the demodulated and decoded data information to an industrial personal computer, and uploading the data information to the superior equipment or the client through a router. The industrial personal computer receives the request of the client through the network, controls each processing module through the serial port, and each processing module works according to the received control instruction.

To sum up, the utility model discloses a different codec module is connected to many mouthfuls of switches, realizes the multichannel setting to receive the digital information that divides the circuit to gather through the LNA and carry out demodulation decoding along separate routes, thereby realize multiple digital signal's demodulation decoding with a set of equipment, for current product, can improve the integrated level, be convenient for set up and manage.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A dedicated digital signal monitoring demodulation unit, comprising: the frame, set up in inside industrial computer of frame, with many mouthfuls of switches that the industrial computer is connected, with a plurality of codec modules that many mouthfuls of switches are connected, with LNA that the industrial computer is connected receive divide the circuit, with LNA receive divide the circuit and reach 3G receiver that the industrial computer is connected, with LNA receive divide the circuit and scan receiver that the industrial computer is connected and with the digital intercom codec module that the industrial computer is connected, LNA receives and divides the circuit to be connected with the antenna, LNA receives and divides the circuit and is connected with digital intercom codec module and codec module.

2. The dedicated digital signal monitoring and demodulating unit according to claim 1, wherein the encoding and decoding modules are FSK, LORA, FM, DMR, dPMR demodulation and decoding modules, respectively.

3. The dedicated digital signal monitoring and demodulating unit according to claim 1, wherein the industrial personal computer is connected with a router.

4. The dedicated digital signal monitoring and demodulating unit according to claim 3, wherein the router is provided with a cascade port through which network devices are cascaded.

5. The dedicated digital signal monitoring and demodulating unit according to claim 3, wherein the industrial personal computer communicates with the router through LAN1, the industrial personal computer communicates with the multi-port switch through LAN2, the LAN1 and LAN2 are isolated from each other.

6. The dedicated digital signal monitoring and demodulating unit according to claim 1, wherein the industrial personal computer is connected with a power module, the power module comprises: the power supply circuit and the voltage reduction power supply circuit are connected with the power supply circuit.