A remote control system and engineering equipment based on network bridge

Abstract

The present invention discloses a remote control system based on a network bridge, comprising a device end, a device end switch, a device end network bridge host, a remote end, a remote end switch, and a remote network bridge host. The device end includes a device end conversion module and a video conversion module. The device end conversion module is connected to the device end network bridge host via the device end switch and converts the device end control signal into a TCP / IP protocol signal suitable for wireless transmission. The video conversion module is connected to the device end network bridge host via the device end switch and converts the video signal into a TCP / IP protocol signal suitable for wireless transmission. The remote end includes a remote conversion module. The remote conversion module is connected to the remote network bridge host via the remote end switch and is used to convert between remote control signals and TCP / IP protocol signals. The device end network bridge host and the remote network bridge host are connected point-to-point wirelessly. The present invention has strong anti-interference capability, low cost, good data transmission stability, and can improve the safe distance of process equipment operation.

Description

Technical Field

[0001] The present invention relates to a remote control system based on a network bridge and engineering machinery, belonging to the technical field of engineering equipment. Background Art

[0002] Engineering equipment such as tunnel boring machines, mining equipment, tower cranes, and crawler cranes require high skill levels from on-site operators due to harsh construction environments, large equipment sizes, and complex control logic. Even the slightest misoperation can lead to major safety incidents. Therefore, reducing operator workload, improving safety, and enabling remote intelligent control are inevitable trends. Engineering equipment demands extremely high operational reliability, and remote control requires signal transmission with strong anti-interference capabilities and extremely low communication latency.

[0003] Currently, the most widely used remote control method for engineering equipment is the industrial wireless remote control. This consists of a handheld or waist-mounted transmitter and a receiver fixed to the equipment. The operator enters their operating instructions into the transmitter through the transmitter's control panel. The transmitter digitally encodes the instructions and transmits them wirelessly to a remote receiving system using the nationally approved V-band. The receiving system decodes and converts the control instructions and then restores them. The equipment can generally be operated within an effective radius of 200 meters. For small equipment in relatively good working environments, this can meet the needs of on-site long-distance wireless control. However, for large equipment in harsh environments, due to the complexity of the control, the need for displaying a large number of control parameters, and the required safety distance far exceeding 200 meters, it exceeds the effective working radius and cannot meet on-site control requirements.

[0004] Furthermore, with the maturity of wireless communication technology, wireless communication methods based on GPRS and 5G are also widely used for remote control. As long as the network signal is good, the transmission distance is almost unlimited. Essentially, this method converts the control-side signal into a network signal, which is then transmitted to the device for conversion and reception via the telecom operator's 5G base station signal. However, in harsh environments and where equipment is highly mobile, base station coverage is low and laying communication cables is unsuitable. This leads to high costs due to unstable signals in the equipment's operating environment, communication fees, and development costs. Summary of the Invention

[0005] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide a remote control system and engineering equipment based on a network bridge, which has strong anti-interference ability, low cost, good data transmission stability, and can increase the safe distance of process equipment operation. To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] In a first aspect, the present invention provides a remote control system based on a network bridge, comprising a device end, a device end switch, a device end network bridge host, a remote end, a remote end switch, and a remote end network bridge host;

[0007] The device end includes a device end conversion module and a video conversion module. The device end conversion module is connected to the device end network bridge host via a device end switch and is used to convert the device end control signal into a TCP / IP protocol signal suitable for wireless transmission; the video conversion module is connected to the device end network bridge host via a device end switch and is used to convert the video signal into a TCP / IP protocol signal suitable for wireless transmission;

[0008] The remote end includes a remote conversion module, which is connected to the remote bridge host through a remote switch and is used for converting remote control signals and TCP / IP protocol signals;

[0009] The device-end bridge host and the remote-end bridge host are connected via point-to-point wireless communication.

[0010] In combination with the first aspect, further, the device end includes a controller and a display, and the controller and the display transmit signals via a CAN bus and use an RS232 serial port to perform remote updating of program codes.

[0011] In combination with the first aspect, further, the remote end includes a display screen, and the display screen transmits signals via a CAN bus and performs remote updating of program codes based on an RS232 serial port.

[0012] In combination with the first aspect, further, the device-side conversion module and the remote-end conversion module both include a CAN-TCP / IP module for converting CAN signals and an RS232-TCP / IP module for converting RS232 serial ports.

[0013] In combination with the first aspect, further, the device end also includes an operation terminal connected to the controller.

[0014] In combination with the first aspect, further, the remote end also includes an IO module, the IO module is connected to a switch and an indicator light, a CAN-IO module is used to convert CAN signals and IO signals, and a CAN-TCP / IP module is used to convert CAN signals and TCP / IP protocol signals.

[0015] In combination with the first aspect, further, the device end also includes a network camera group connected to the video conversion module.

[0016] In combination with the first aspect, further, the remote end also includes a control terminal connected to the remote bridge host through a remote switch, and a remote operation terminal connected to the remote conversion module.

[0017] In combination with the first aspect, preferably, the operation mode and display content of the remote operation terminal are consistent with those of the device-side operation terminal.

[0018] In combination with the first aspect, further, the device-side bridge host and the remote bridge host communicate using a wireless network in the 5.8 GHz frequency band.

[0019] In combination with the first aspect, preferably, the Ethernet signal is transmitted wirelessly over long distances via a point-to-point wireless connection, with the maximum effective communication distance being 10 km.

[0020] In a second aspect, the present invention provides an engineering device, comprising the bridge-based remote control system described in any one of the first aspects.

[0021] Compared with the prior art, the beneficial effects achieved by the bridge-based remote control system and engineering equipment provided by the embodiments of the present invention include:

[0022] The present invention includes a device end, a device end switch, a device end bridge host, a remote end, a remote end switch, and a remote end bridge host. The device end includes a device end conversion module and a video conversion module. The device end conversion module is connected to the device end bridge host via the device end switch and is used to convert device end control signals into TCP / IP protocol signals suitable for wireless transmission. The video conversion module is connected to the device end bridge host via the device end switch and is used to convert video signals into TCP / IP protocol signals suitable for wireless transmission. The remote end includes a remote end conversion module. The remote end conversion module is connected to the remote end bridge host via the remote end switch and is used to convert between remote end control signals and TCP / IP protocol signals. The present invention converts signals from both the device end and the remote end into TCP / IP protocol signals supported by the wireless bridge.

[0023] The device-end bridge host and the remote bridge host of the present invention are connected through point-to-point wireless communication. The maximum effective communication distance of Ethernet is 10 km, which can improve the safe distance of process equipment operation; it can meet the needs of on-site control; the data transmission stability is good, the anti-interference ability is strong, and it can adapt to the working environment with relatively harsh environment, high equipment mobility, low base station coverage, and unsuitable for laying communication cables. The communication cost is low, the development cost is low, and the operating cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 1 is a communication connection diagram of a remote control system based on a network bridge provided in Example 1 of the present invention;

[0025] Figure 2 This is a wireless bridge communication architecture of a bridge-based remote control system provided in Example 1 of the present invention. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0027] like Figure 1 As shown, a remote control system based on a bridge includes a device end, a device end switch, a device end bridge host, a remote end, a remote switch, and a remote bridge host.

[0028] like Figure 1 As shown, the device side includes multiple controllers, multiple displays, an operation terminal, a network camera group, a device side conversion module, a video conversion module, a device side switch and a device side bridge host.

[0029] The operator terminal is a device used by the driver to operate the equipment, such as handles, remote controls, and pedals. It is connected to the controller. Control signals from the controller and display are transmitted via the CAN bus, and program code is remotely updated using the RS232 serial port. The device-side conversion module converts device-side signals between device-side signals and TCP / IP protocol signals. It includes a CAN-TCP / IP module for converting CAN signals between CAN signals and TCP / IP protocol signals, and an RS232-TCP / IP module for converting RS232 serial ports. The device-side conversion module connects to the device-side bridge host via the device-side switch, converting TCP / IP protocol signals to the device-side bridge host.

[0030] The network camera group has multiple network cameras, which are installed at various important positions of the device. The network camera group is connected to the video conversion module, which converts the video signal into a TCP / IP protocol signal. The video conversion module is connected to the device-side bridge host through the device-side switch, and transmits the TCP / IP protocol signal to the device-side bridge host to realize remote video monitoring.

[0031] like Figure 1 As shown, the remote end includes multiple display screens, IO modules, CAN-IO modules, remote conversion modules, control terminals, remote operation terminals, remote switches and remote bridge hosts.

[0032] The display's signals are transmitted via the CAN bus, and program code is remotely updated using the RS232 serial port. The remote conversion module includes a CAN-TCP / IP module and an RS232-TCP / IP module. The CAN-TCP / IP module converts CAN signals into TCP / IP protocol signals, while the RS232-TCP / IP module converts RS232 serial port signals. The I / O module, which is connected to switches and indicator lights, uses the CAN-IO module to convert CAN signals into I / O signals, while the remote conversion module's CAN-TCP / IP module converts CAN signals into TCP / IP protocol signals. The remote conversion module connects to the remote bridge host via a remote switch and converts TCP / IP protocol signals to the remote bridge host.

[0033] The control terminal, a device such as a computer or tablet, connects to the remote bridge host via a remote switch and is used for remote control, reading system status, and storing operational data. The remote operation terminal is connected to the remote conversion module. Its operation methods and display content are consistent with those of the device-side operation terminal, facilitating operator control. The control terminal and remote operation terminal enable the system to be operated both from within the cab and remotely.

[0034] The device-side bridge host and the remote bridge host communicate via a point-to-point wireless connection, specifically using a 5.8GHz wireless network. The effective communication distance is up to 10 km, which increases the safe operating distance of process equipment and meets the needs of on-site control. The data transmission is stable and highly resistant to interference, making it suitable for working environments with harsh environments, high equipment mobility, low base station coverage, and conditions unsuitable for laying communication cables. It also offers low communication costs, low development costs, and low operating costs.

[0035] This application also provides an engineering device, including a remote control system based on a network bridge in the above embodiment. Figure 2 As shown, the device end and the remote end interact with each other through switches and bridges, and the different signal types of the device end and the remote end are converted into standard Ethernet signals supported by the wireless bridge for wireless transmission.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A remote control system based on a network bridge, characterized in that: Including device side, device side switch, device side bridge host, remote side, remote side switch, remote bridge host; The device end includes a device end conversion module and a video conversion module. The device end conversion module is connected to the device end network bridge host via a device end switch and is used to convert the device end control signal into a TCP / IP protocol signal suitable for wireless transmission; the video conversion module is connected to the device end network bridge host via a device end switch and is used to convert the video signal into a TCP / IP protocol signal suitable for wireless transmission; The remote end includes a remote conversion module, which is connected to the remote bridge host through a remote switch and is used for converting remote control signals and TCP / IP protocol signals; The device-end bridge host and the remote-end bridge host are connected via a point-to-point wireless connection; The device-side conversion module and the remote-end conversion module both include a CAN-TCP / IP module for converting CAN signals and an RS232-TCP / IP module for converting RS232 serial ports; The device-side bridge host and the remote-end bridge host communicate using a wireless network in the 5.8 GHz frequency band.

2. The remote control system based on the network bridge according to claim 1, characterized in that: The device end includes a controller and a display, which transmit signals via a CAN bus and use an RS232 serial port to remotely update program codes.

3. The remote control system based on the network bridge according to claim 1, characterized in that: The remote end includes a display screen, which transmits signals via a CAN bus and uses an RS232 serial port to perform remote updating of program codes.

4. The remote control system based on the network bridge according to claim 2, characterized in that: The device end also includes an operation terminal connected to the controller.

5. The remote control system based on the network bridge according to claim 3, characterized in that: The remote end also includes an IO module, which is connected to a switch and an indicator light. A CAN-IO module is used to convert CAN signals and IO signals, and a CAN-TCP / IP module is used to convert CAN signals and TCP / IP protocol signals.

6. The remote control system based on the network bridge according to claim 1, characterized in that: The device end also includes a network camera group connected to the video conversion module.

7. The remote control system based on the network bridge according to claim 1, characterized in that: The remote end also includes a control terminal connected to the remote bridge host through a remote switch and a remote operation terminal connected to the remote conversion module.

8. An engineering equipment, comprising the bridge-based remote control system according to any one of claims 1 to 7.

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