Explosion-proof instruction telephone station system

Abstract

The utility model discloses an explosion-proof instruction telephone station system which comprises an explosion-proof electrical control cabinet and a plurality of explosion-proof telephone stations, the plurality of explosion-proof telephone stations are connected in series through a data bus and then are connected with the explosion-proof electrical control cabinet through a CAN communication protocol, and each explosion-proof telephone station is provided with a corresponding address. On the basis of a host-free single-channel telephone station, the CAN communication technology is adopted, the address of each telephone station can be set, and the calling address telephone station is set through the knob switch on the telephone station panel, so that the functions of calling specific telephone stations and group calling can be realized, the effect of mutually testing the point calling and group calling functions among the telephone stations is good, and the phenomena of disconnection and poor communication are avoided.

Description

Technical Field

[0001] The utility model belongs to the field of explosion-proof technology, and specifically relates to an explosion-proof command station system, which is a system used in dangerous places or relatively harsh environments such as petroleum, chemical industry, military industry, metallurgy, electric power, coal mines, and medicine where explosive gases and combustible dust exist. Background Art

[0002] Since the explosion-proof production environment is relatively harsh, with characteristics such as humidity, dust, high noise, and gas explosion hazards, the choice of the on-site communication system must be suitable for the on-site environmental requirements and the needs of the production and safety management during the production process. Therefore, it is very important to choose a suitable communication system. At present, the host-free telephone station system adopts bus connection. The system has broadcasting and intercom functions. The biggest feature of on-site broadcasting is that one call can be responded to by hundreds. Each telephone station has broadcasting and intercom functions. The multi-channel system can realize the communication of on-site personnel at the same time without interfering with each other, and multiple people can listen to the lecture at the same time in the same channel. The system cannot realize point calling and group calling of terminal telephone stations. The communication distance is short, and there are disconnections and poor communication phenomena. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide an explosion-proof command telephone station system, by which the communication distance can reach 1km, each telephone station can freely set the address, and realize the point call and group call function in multiple telephone stations.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: an explosion-proof command telephone station system, including an explosion-proof electrical control cabinet and an explosion-proof telephone station, wherein there are multiple explosion-proof telephone stations, and the multiple explosion-proof telephone stations are connected in series through a data bus and connected to the explosion-proof electrical control cabinet using a CAN communication protocol, and each explosion-proof telephone station is provided with a corresponding address.

[0005] Each explosion-proof telephone station is respectively provided with an explosion-proof telephone station loudspeaker.

[0006] The explosion-proof electrical control cabinet is provided with an explosion-proof keyboard, and the explosion-proof electrical control cabinet is connected with an explosion-proof foot switch or an explosion-proof button.

[0007] The explosion-proof electrical control cabinet is arranged in the driller's room, and an explosion-proof speaker is arranged on the explosion-proof electrical control cabinet.

[0008] The utility model adopts the explosion-proof command telephone station system designed by the above technical scheme. On the basis of the host-free single-channel telephone station, the CAN communication technology is adopted, and the address of each telephone station can be set. When the address telephone station to be called is set by the knob switch on the telephone station panel, the calling of a specific telephone station and the group calling function can be realized. The point calling and group calling functions between the telephone stations are tested each other and the effect is good, without disconnection and poor communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 The utility model shows a schematic diagram of the structure of the explosion-proof command station system. DETAILED DESCRIPTION

[0010] The utility model explosion-proof command station system is described in detail below with reference to the accompanying drawings.

[0011] This utility model explosion-proof command station system, see Figure 1 , including explosion-proof electrical control cabinet and HWB-C explosion-proof telephone station. There are multiple explosion-proof telephone stations. There are 8 telephone stations in the figure (shown by numbers 1 to 8). Multiple explosion-proof telephone stations are connected in series through the data bus and connected to the explosion-proof electrical control cabinet using the CAN communication protocol. Each explosion-proof telephone station is set with a corresponding address, and each explosion-proof telephone station is respectively connected with a BYS series explosion-proof speaker.

[0012] The explosion-proof electrical control cabinet is set in the driller's room. It is equipped with an explosion-proof keyboard, and is also equipped with an explosion-proof foot switch or explosion-proof button (due to different on-site environments, it is more convenient to use an explosion-proof foot switch at some sites, and it is more convenient to use an explosion-proof button at some sites). The explosion-proof foot switch and explosion-proof button both function as switches at the physical level. In the utility model, their main function is to start shouting when the switch is closed. The explosion-proof electrical control cabinet is equipped with a BYS series control cabinet explosion-proof speaker.

[0013] The utility model adopts CAN communication technology (CAN-Controller Area Network is a network protocol used for communication between various vehicles and equipment. It is a high-speed, long-distance, multi-master control, broadcast communication network protocol. The characteristics of the CAN protocol include complete serial data communication, real-time support, transmission rate up to 1Mb / s, and 11-bit addressing and error detection capabilities.) on the basis of a host-free single-channel telephone station. The address of each telephone station can be set. When the address telephone station to be called is set through the knob switch on the telephone station panel, the function of calling a specific telephone station and group calling can be realized. Since the CAN communication distance is determined by the communication rate, the higher the rate, the shorter the communication distance. The baud rate of the CAN of the utility model is set to 50Kbps. According to the corresponding relationship between the standard CAN baud rate and the communication distance, 50Kbps can reach 1300m, so the communication distance of the utility model can reach at least 1km.

Claims

1. An explosion-proof command station system, including an explosion-proof electrical control cabinet and an explosion-proof station, characterized in that There are multiple explosion-proof telephone stations, which are connected in series through a data bus and connected to an explosion-proof electrical control cabinet using a CAN communication protocol. Each explosion-proof telephone station is provided with a corresponding address.

2. The explosion-proof command station system according to claim 1 is characterized in that Each explosion-proof telephone station is respectively provided with an explosion-proof telephone station loudspeaker.

3. The explosion-proof command station system according to claim 1 is characterized in that The explosion-proof electrical control cabinet is provided with an explosion-proof keyboard, and the explosion-proof electrical control cabinet is connected with an explosion-proof foot switch or an explosion-proof button.

4. The explosion-proof command station system according to claim 1 is characterized in that The explosion-proof electrical control cabinet is arranged in the driller's room, and an explosion-proof speaker is arranged on the explosion-proof electrical control cabinet.

Images