Fire-fighting telephone host networking system

Abstract

The utility model relates to a fire-fighting telephone host networking system, which comprises a fire-fighting telephone switchboard and a plurality of fire-fighting telephone units, the fire-fighting telephone unit comprises a fire-fighting telephone host, a fire-fighting telephone extension and fire-fighting telephone networking equipment; the fire-fighting telephone switchboard is in communication connection with all the fire-fighting telephone networking devices in sequence through a first fire-fighting telephone bus; the fire-fighting telephone host is in communication connection with the fire-fighting telephone extension and the fire-fighting telephone networking equipment through a second fire-fighting telephone bus; the fire-fighting telephone host networking system is ingenious in design, the fire-fighting telephone networking equipment is connected with the fire-fighting telephone switchboard and the fire-fighting telephone host through the first fire-fighting telephone bus and the second fire-fighting telephone bus respectively, and unified management of the fire-fighting telephone host and the fire-fighting telephone extension in the system is achieved. All the fire-fighting telephone extensions and the fire-fighting telephone host in the system can dial and communicate with the fire-fighting telephone switchboard, a specially-assigned person is not needed for guarding, and the whole system is simple in networking mode, convenient to use and simple and convenient to deploy.

Description

Technical Field

[0001] This utility model relates to the field of fire protection communication technology, and more specifically, to a fire telephone host networking system. Background Technology

[0002] A typical fire telephone system includes a main switchboard and extension telephone units. The main switchboard and extension telephone units are connected by a fire telephone bus. The main switchboard provides power supply, message communication, and call functions to the extension telephone units, and works with the extension telephone units to realize the fire telephone function. my country's fire telephone system should comply with the relevant standards of GB16806-2006 "Fire Linkage Control System".

[0003] With the increasing variety of applications for fire telephones, the market has seen a growing demand for networking systems with multiple fire control rooms. This requires connecting multiple independent fire telephone mainframe systems into a unified fire telephone system, enabling unified management of the mainframes and extensions within the system. All extensions should be able to dial and communicate with each other from the main switchboard in the fire control room. Figure 1 As shown, the fire telephone system includes multiple fire control rooms, each containing a fire telephone main unit and multiple fire telephone extensions. Each fire telephone system operates independently. However, the drawback of this system is that each fire telephone system is managed independently and cannot be interconnected. Each fire control room requires dedicated personnel to be on duty, which results in a significant waste of human resources. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a fire telephone host networking system in view of the above-mentioned defects of the prior art.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a fire telephone host networking system, comprising a fire telephone switchboard and multiple fire telephone units; each fire telephone unit includes a fire telephone hostboard, fire telephone extensions, and fire telephone networking equipment; the fire telephone switchboard is sequentially connected to all the fire telephone networking equipment via a first fire telephone bus; the fire telephone hostboard is connected to the fire telephone extensions and the fire telephone networking equipment via a second fire telephone bus; the fire telephone networking equipment is used to parse messages from the first and second fire telephone buses and establish a communication channel between the fire telephone switchboard and the corresponding fire telephone hostboard;

[0006] The fire telephone host networking system of this utility model includes a controller, an isolation chip for isolating and controlling the signal of the call channel, a first message detection circuit for detecting the first fire telephone bus message in the call channel, a first message sending circuit for sending the isolated message to the first fire telephone bus, a second message detection circuit for detecting the second fire telephone bus message, a second message sending circuit for sending the isolated message to the second fire telephone bus, a first audio and control circuit electrically connected to the first fire telephone bus, a second audio and control circuit electrically connected to the second fire telephone bus, and an audio transformer connecting the first audio and control circuit and the second audio and control circuit.

[0007] The fire telephone host networking system of this utility model further includes a DIP switch electrically connected to the controller for configuring an address for the fire telephone host connected to the fire telephone networking device.

[0008] In the fire telephone host networking system of this utility model, when the communication channel between the first fire telephone bus and the second fire telephone bus is not established, the signal between the fire telephone switchboard and the fire telephone host is completely isolated; after the communication channel between the first fire telephone bus and the second fire telephone bus is established, the analog audio signals between the first fire telephone bus and the second fire telephone bus can be interconnected.

[0009] The fire telephone host networking system of this utility model is wherein the fire telephone networking equipment is powered separately by an external DC power supply.

[0010] In the fire telephone host networking system described in this utility model, the multiple fire telephone units do not interfere with each other;

[0011] The fire telephone host networking system of this utility model further includes a main control room and multiple sub-control rooms; the fire telephone switchboard is located in the main control room; and multiple fire telephone hosts are sequentially located in multiple sub-control rooms.

[0012] The fire telephone host networking system of this utility model includes an isolation chip comprising a first signal isolation circuit and a second signal isolation circuit; both the first signal isolation circuit and the second signal isolation circuit are provided with three sets of ground signals, namely the controller ground signal, the telephone interface ground signal of the first fire telephone bus, and the telephone interface ground signal of the second fire telephone bus;

[0013] The fire telephone host networking system of this utility model includes a six-digit DIP switch module; the DIP switch can be set with at least one address.

[0014] The fire telephone host networking system of this utility model, wherein the fire telephone main unit can also be connected to at least one fire telephone extension unit through the first fire telephone bus.

[0015] The beneficial effects of this utility model are as follows: The fire telephone host networking system is ingeniously designed. Without changing the original network structure and business functions of each system, all fire telephone units are treated as independent telephone modules. The fire telephone switchboard acts as the system switchboard, which can uniformly manage the multiple fire telephone units directly under it. The fire telephone networking equipment is connected to the fire telephone switchboard and the fire telephone host through the first fire telephone bus and the second fire telephone bus, respectively, to realize the unified management of the fire telephone hostboard and fire telephone extensions within the system. All fire telephone extensions and fire telephone hostboards within the system can dial and talk to each other with the fire telephone switchboard. No special personnel are required to be on duty. The entire system networking method is simple, easy to use, and easy to deploy. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a block diagram of a fire telephone system in the background technology.

[0018] Figure 2 This is a schematic block diagram of a fire telephone host networking system in a preferred embodiment of this utility model;

[0019] Figure 3 yes Figure 1 Circuit diagram of fire telephone network equipment;

[0020] Figure 4 yes Figure 3 Signal connection diagram of the 232 isolation chip;

[0021] Figure 5 yes Figure 3 Circuit diagram of DIP switch 2310;

[0022] Figure 6 yes Figure 3 Circuit schematic of controller 231;

[0023] Figure 7 yes Figure 3 The telephone interface circuit diagram of the first fire telephone bus 01 in China;

[0024] Figure 8 yes Figure 3 The telephone code receiving circuit diagram of the first fire telephone bus 01. Detailed Implementation

[0025] The terms "first," "second," "third," and "fourth," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0026] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0027] "Multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0028] Furthermore, the terms indicating orientation, such as "up, down, front, back, left, right, upper end, lower end, longitudinal," etc., are all based on the posture and position of the device or equipment described in this solution during normal use.

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0030] A preferred embodiment of this utility model provides a fire telephone host networking system, such as... Figure 2As shown, the system includes a fire telephone switchboard 11 and multiple fire telephone units; each fire telephone unit includes a fire telephone main unit 21, fire telephone extensions 22, and fire telephone networking equipment 23; the fire telephone switchboard 11 is connected to all fire telephone networking equipment 23 sequentially via a first fire telephone bus 01; the fire telephone main unit 21 is connected to the fire telephone extensions 22 and the fire telephone networking equipment 23 via a second fire telephone bus 02; the fire telephone networking equipment 23 is used to parse messages from the first fire telephone bus 01 and the second fire telephone bus 02, and establish a communication channel between the fire telephone switchboard 11 and the corresponding fire telephone main unit 21; the multiple fire telephone units do not interfere with each other.

[0031] Alternatively, the fire telephone switchboard 11 can also be connected to at least one fire telephone extension 22 via the first fire telephone bus 01, allowing for flexible deployment.

[0032] This fire telephone host networking system is ingeniously designed. Without changing the original network structure and business functions of each system, it treats all fire telephone units as independent telephone modules. The fire telephone switchboard acts as the system switchboard, which can uniformly manage the multiple fire telephone units directly under it. The fire telephone networking equipment is connected to the fire telephone switchboard and the fire telephone host through the first fire telephone bus and the second fire telephone bus, respectively, to realize unified management of the fire telephone host and fire telephone extensions within the system. All fire telephone extensions and fire telephone host within the system can dial and talk to each other with the fire telephone switchboard. No dedicated personnel are required to be on duty. The entire system networking method is simple, easy to use, and easy to deploy.

[0033] like Figure 3 As shown, the fire telephone network equipment 23 includes a controller 231, an isolation chip 232 for isolating and controlling the signals of the call channel, a first message detection circuit 233 for detecting messages of the first fire telephone bus 01 in the call channel, a first message sending circuit 234 for sending isolated messages to the first fire telephone bus 01, a second message detection circuit 235 for detecting messages of the second fire telephone bus 02, a second message sending circuit 236 for sending isolated messages to the second fire telephone bus 02, a first audio and control circuit 237 electrically connected to the first fire telephone bus 01, a second audio and control circuit 238 electrically connected to the second fire telephone bus 02, and an audio transformer 239 connecting the first audio and control circuit 237 and the second audio and control circuit 238.

[0034] Among them, the controller 231, as the core control unit of the fire telephone network equipment 23, is responsible for detecting the communication between the first fire telephone bus 01 and the second fire telephone bus 02, and judging and processing the entire business process based on the bus communication. It can execute programming instructions according to the received signals, process input signals, control output signals, manage telephone communication protocols, process telephone signals, and realize functions such as dialing, answering, and hanging up telephone calls.

[0035] The isolation chip 232 provides electrical isolation, protecting the fire telephone network equipment 23 from power fluctuations and external interference; it prevents damage to the entire system due to line faults, and improves the reliability and safety of the system. In this embodiment, the isolation chip 232 is model π131M31.

[0036] The first message detection circuit is used to detect fire telephone signals from the first fire telephone bus and identify the signal type, such as call requests, status updates, etc.; the first message sending circuit is responsible for sending local call requests, status information, etc. to the first fire telephone bus; similarly, the second message detection circuit detects fire telephone signals from the second fire telephone bus and can receive status reports or emergency calls from fire telephone extensions and fire telephone contacts; the second message sending circuit sends commands, notices or other information to the second fire telephone bus.

[0037] The first audio and control circuit is used to process the audio signals of the first fire telephone bus communication and control the transmission of the audio signals, such as amplification and filtering; similarly, the second audio and control circuit processes the audio signals of the second fire telephone bus and controls the transmission of the audio signals, such as amplification and filtering.

[0038] An audio transformer is used to transmit audio signals between a first audio and control circuit and a second audio and control circuit, and to provide further electrical isolation to prevent interference between different lines.

[0039] In this embodiment, the fire telephone networking device 23 is powered by an external DC power supply, thus isolating the ground signal between the fire telephone networking device 23, the fire telephone switchboard 11, and the fire telephone host. At the same time, the interface of the controller 231 uses isolation chips to isolate each control circuit, and the audio signal is isolated through an audio transformer. Therefore, all signals between the fire telephone networking device, the fire telephone switchboard 11, and the fire telephone host are isolated, avoiding the propagation of their respective interferences throughout the system and ensuring an excellent fire telephone service experience for the entire system.

[0040] Furthermore, the fire telephone networking equipment 23 also includes a DIP switch 2310 electrically connected to the controller 231, used to configure an address for the fire telephone host 21 connected to the fire telephone networking equipment 23.

[0041] When the communication channel between the first fire telephone bus 01 and the second fire telephone bus 02 is not established, the signal between the fire telephone switchboard 11 and the fire telephone host 21 is completely isolated; after the communication channel between the first fire telephone bus 01 and the second fire telephone bus 02 is established, the analog audio signals between the first fire telephone bus 01 and the second fire telephone bus 02 can be communicated.

[0042] Optionally, such as Figure 2 As shown, the fire telephone host 21 networking system also includes a main control room 03 and multiple sub-control rooms 04; the fire telephone switchboard 11 is located in the main control room 03; and multiple fire telephone hosts 21 are sequentially located in multiple sub-control rooms 04.

[0043] like Figure 4 As shown, the isolation chip 232 includes a first signal isolation circuit and a second signal isolation circuit; both the first signal isolation circuit and the second signal isolation circuit are provided with three sets of ground signals, namely the ground signal of the controller 231, the ground signal of the telephone interface of the first fire telephone bus 01, and the ground signal of the telephone interface of the second fire telephone bus 02.

[0044] like Figure 5 As shown, the DIP switch 2310 is a six-bit switch module; the DIP switch 2310 can be set with at least 63 addresses.

[0045] Among them, such as Figure 6 As shown, the controller 231 can be model FT62F287-Trb; it is worth noting that in the fire telephone networking equipment 23, the first message detection circuit 233, the first message sending circuit 234, the second message detection circuit 235, the second message sending circuit 236, the first audio and control circuit 237, the second audio and control circuit 238, and the audio transformer 239 are all existing technologies, and will not be described in detail here.

[0046] In this embodiment, the circuits of the first fire telephone bus 01 and the second fire telephone bus 02 are the same, such as... Figure 7 The diagram shown is the telephone interface circuit diagram of the first fire telephone bus 01; in which, Figure 7Q1 is a high-power transistor that can provide a maximum bus current of 5A. PHONE_BUS is the bus signal, which is fed back to Q2 for amplification via C22, and then amplified again by Q1 to amplify the bus audio signal. LN_DOUT is connected to the bus controller. When a message needs to be sent, the bus controller controls LN_DOUT to generate a transmission signal waveform. Then, through the relatively large current-carrying capability of transistor Q3, a strong protection communication waveform is formed on the bus to clearly distinguish the amplitude changes of the audio signal. The LNTEST_A signal is connected to the I / O port of the bus controller, and the AD conversion function enables real-time monitoring of the bus voltage.

[0047] like Figure 8 The diagram shown is the telephone code receiving circuit diagram of the first fire telephone bus 01; in which, Figure 8 R18, C16, R75, R35, and C20 form a bus communication waveform shaping circuit, which shapes a continuous square wave of a certain frequency and amplitude on the bus into a low-level pulse signal with a corresponding width. Q9 and Q10 are used as comparators to realize the level conversion function and generate a 3.3V level signal suitable for microcontroller recognition. Q12 further shapes the signal and finally generates the received code signal LN_DIN, which is sent to the bus controller for processing.

[0048] The communication mechanism of the telephone bus is divided into two parts: code transmission control and code reception detection.

[0049] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A fire telephone host networking system, characterized by comprising: It includes a fire telephone switchboard and multiple fire telephone units; each fire telephone unit includes a fire telephone main unit, fire telephone extensions, and fire telephone networking equipment; the fire telephone switchboard is sequentially connected to all the fire telephone networking equipment via a first fire telephone bus; the fire telephone main unit is connected to the fire telephone extensions and the fire telephone networking equipment via a second fire telephone bus. The fire telephone networking equipment is used to parse messages from the first fire telephone bus and the second fire telephone bus, and to establish a communication channel between the fire telephone switchboard and the corresponding fire telephone host.

2. The fire phone host networking system according to claim 1, characterized in that, The fire telephone network equipment includes a controller, an isolation chip for isolating and controlling signals in the call channel, a first message detection circuit for detecting messages from the first fire telephone bus in the call channel, a first message sending circuit for sending isolated messages to the first fire telephone bus, a second message detection circuit for detecting messages from the second fire telephone bus, a second message sending circuit for sending isolated messages to the second fire telephone bus, a first audio and control circuit electrically connected to the first fire telephone bus, a second audio and control circuit electrically connected to the second fire telephone bus, and an audio transformer connecting the first audio and control circuit and the second audio and control circuit.

3. The fire phone host networking system according to claim 2, wherein, The fire telephone network equipment also includes a DIP switch electrically connected to the controller, used to configure an address for the fire telephone host connected to the fire telephone network equipment.

4. The fire phone host networking system according to claim 2, wherein, When the communication channel between the first fire telephone bus and the second fire telephone bus is not established, the signal between the fire telephone switchboard and the fire telephone host is completely isolated; after the communication channel between the first fire telephone bus and the second fire telephone bus is established, the analog audio signals between the first fire telephone bus and the second fire telephone bus can be interconnected.

5. The fire telephone host networking system according to any one of claims 2-4, characterized in that, The fire telephone network equipment is powered by an external DC power supply.

6. The fire telephone host networking system according to claim 1, characterized in that, The multiple fire telephone units do not interfere with each other.

7. The fire telephone host networking system according to claim 6, characterized in that, The fire telephone host networking system also includes a main control room and multiple sub-control rooms; the fire telephone switchboard is located in the main control room; and multiple fire telephone hosts are sequentially located in multiple sub-control rooms.

8. The fire telephone host networking system according to claim 5, characterized in that, The isolation chip includes a first signal isolation circuit and a second signal isolation circuit; both the first signal isolation circuit and the second signal isolation circuit are provided with three sets of ground signals, namely the controller ground signal, the telephone interface ground signal of the first fire telephone bus, and the telephone interface ground signal of the second fire telephone bus.

9. The fire telephone host networking system according to claim 3, characterized in that, The DIP switch is a six-digit switch module used for the address of the fire telephone network equipment; the DIP switch can be set with at least 63 addresses.

10. The fire telephone host networking system according to claim 1, characterized in that, The fire telephone switchboard can also be connected to at least one of the fire telephone extensions via the first fire telephone bus.

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