阅读说明：本技术 基于单芯同轴及载波通讯技术的语音扩播电话控制系统 (Voice broadcast telephone control system based on single-core coaxial and carrier communication technology ) 是由 叶志刚 卢进步 胡长岭 张翔宇 刘新 蒋运生 孙梨 王昊 于二威 于 2020-07-14 设计创作，主要内容包括：本发明属于单芯同轴及载波通讯技术领域,尤其为基于单芯同轴及载波通讯技术的语音扩播电话控制系统,其特征在于：包括语音扩播主机系统、语音扩播分机系统、扩播分机与主机数据通讯系统、扩播主机与上位机的通讯系统,且语音扩播主机系统、语音扩播分机系统组件相同,分机与主机通讯的方式采用中断方式,有利于最大限度的降低数据流量,不至于众多分机漏掉重要的信息或等待时间过长,提高内部通信总线的利用率,主机与分机之间的通讯采用载波通讯方式,且语言通讯方式也采用射频载波通讯技术,并且对各台号机的充电电源载入,均可以与上述实现单芯同轴电缆连接方式,与之前的七芯同轴电缆连接的方案相比较,将大大的降低成本。(The invention belongs to the technical field of single-core coaxial and carrier communication, in particular to a voice broadcast telephone control system based on the single-core coaxial and carrier communication technology, which is characterized in that: the system comprises a voice extension host system, a voice extension system, an extension and host data communication system, a communication system of an extension host and an upper computer, wherein the voice extension host system and voice extension system components are the same, an interruption mode is adopted for the communication mode of the extension and the host, the data flow is favorably reduced to the maximum extent, important information can not be leaked from a plurality of extensions or the waiting time is not too long, the utilization rate of an internal communication bus is improved, a carrier communication mode is adopted for the communication between the host and the extension, a radio frequency carrier communication technology is also adopted for the voice communication mode, and charging power supplies of all machines are loaded, the single-core coaxial cable connection mode can be realized, compared with the previous scheme of seven-core coaxial cable connection, and the cost is greatly reduced.)

1. Pronunciation expand broadcasting telephone control system based on single core is coaxial and carrier communication technique, its characterized in that: the system comprises a voice broadcasting host system, a voice broadcasting extension system, a broadcasting extension and host data communication system, and a communication system of a broadcasting host and an upper computer, wherein the voice broadcasting extension host system and the voice broadcasting extension system have the same components, and the voice broadcasting extension system comprises a radio frequency voice intercom unit, a carrier modem, a CPU, an emergency stop module, a storage battery power supply module, a storage battery charging control unit, a voltage stabilizing circuit module of a charging power supply, a radio frequency and carrier and charging current isolation inductance module, a DC-DC unit, an A/D unit, a dotting voice generator and a voice receiving and sending module.

2. The voice broadcasting telephone control system based on the single-core coaxial and carrier communication technology as claimed in claim 1, wherein: the data transceiver module is composed of a serial communication port of a CPU, a carrier transmitter, a carrier demodulator, a radio frequency isolation inductor and a communication coaxial cable, and forms a communication function of sensor data communication and data transceiving control, wherein the communication function comprises emergency stop data, an emergency stop switch shown in figure 1 is linked by the coaxial cable, when the coaxial cable is pulled, the emergency stop switch is triggered to be closed and linked with a certain I/O port of a singlechip of a certain extension or host, when the emergency stop switch is pressed, namely the level of the certain I/O port of the singlechip is changed, if the level is changed from high to low, emergency stop state data and a certain number address code of an extension telephone are generated after being processed by the singlechip, and the emergency stop state data and the certain number address code are packed together with other data and are transmitted to a carrier modulation circuit and the communication coaxial cable of a certain machine;

the charging control system is led to the A/D unit from a 9.6V positive end by a wire, converted into voltage data of the current power supply positive end and transmitted into the CPU, the CPU judges whether the data reaches a fully charged threshold value, and if the data reaches the fully charged threshold value, the CPU controls the electronic switch unit to be switched off through an I/O port so as to cut off the charging of the storage battery;

when the extension set or the host needs to perform voice dotting, a dotting switch is pressed down by a certain extension set or the host, a dotting voice generator generates an audio signal, the audio is modulated to be sent by a radio frequency voice module, other extension sets receive the audio signal and make a sound by a loudspeaker, the dotting switch is pressed down discontinuously to represent different voice dotting times, and the extension set or the host receives the voice at the moment and understands the voice as representing different appointed information;

a CPU control module; CPU, Q3, D200, D201, modulation electronic switch unit composed of U200, U201, Q200 and Q201, the I/O port of CPU is TXD data, which includes each expanding host, extension sensor data and emergency stop data, namely, the data to be sent is added to the electronic switch unit and sent to the carrier generator unit composed of U200, U201, it is modulated at low speed 300bps and the carrier is converted into modulated carrier signal (FSK), that is, frequency shift keying signal, and after amplified to a certain amplitude by the amplifier, it is output to the communication coaxial cable and sent out, carried to the communication cable, received by the most front voice expanding host, coupled to the carrier demodulator of the voice expanding host, and recovered to TTL data, then input to CPU, and the CPU cooperates with software to expand the frame data of the address of extension by a certain voice, the station number is stored in the host computer, if the same data is sent by another voice broadcasting extension set at this time, the above-mentioned process is repeated and stored, at this time, for example, the host computer calls the voice broadcasting extension host computer in the form of MODBUS protocol, the broadcasting extension host computer firstly increases the communication speed, for example, 9600bps, the communication state between the broadcasting extension telephone system and the host computer is switched by the internal and external communication channel switching relay, and the MODBUS protocol is also given back to the host computer, the host computer performs corresponding data processing, the data sent by the host computer through the RS232-TTL switching board and the internal and external communication channel switching relay is switched to the communication state between the broadcasting extension telephone system and the host computer, at this time, the broadcasting extension host computer firstly increases the communication speed, for example, the TTL data of the host computer at this time of 9600bps, the modulation of the data is completed by the host computer, the data is sent to the extension sets at the lower end by the coaxial cable, and the broadcasting extension telephone demodulates the data, after corresponding processing is carried out, the data is transmitted back to the extension host computer through a carrier channel, then is switched to a communication state between the extension telephone host computer and the upper computer through an internal and external communication channel switching relay, and is transmitted to the upper computer to carry out corresponding processing.

3. The voice broadcasting telephone control system based on the single-core coaxial and carrier communication technology as claimed in claim 1, wherein: the data receiving and transmitting module comprises a serial communication port of the CPU, a carrier transmitter, a carrier demodulator, a radio frequency isolation inductor, a communication coaxial cable and emergency stop data.

4. The voice broadcasting telephone control system based on single-core coaxial and carrier communication technology according to claim 1 or 2, characterized in that: the serial communication port I/O (TXD) of the CPU is provided for the modulation end of a carrier wave generator in a TTL level form, the carrier wave of the carrier wave generator is modulated into modulated carrier wave in an FSK mode, the modulated carrier wave is amplified to a certain amplitude by an amplifier, then the modulated carrier wave is output to a communication coaxial cable and sent out, the modulated carrier wave is carried on a communication cable, received by a voice broadcasting host at the forefront end, coupled to a carrier wave demodulator of the voice broadcasting host and restored into TTL data, and then input to the CPU, the frame data is firstly stored by using the address data, namely a station number, of a certain voice broadcasting extension set if the address data is also sent by another voice broadcasting extension set, the process is repeated and stored, and at the moment, the MOD broadcasting host is called in a BUS protocol form as an upper computer, and the communication speed is firstly increased by the broadcasting host.

5. The voice broadcasting telephone control system based on the single-core coaxial and carrier communication technology as claimed in claim 1, wherein: the voice broadcast telephone communication between the extension and the extension, and between the classification and the host is completed by the radio frequency voice talkback board in the system.

6. The single-core coaxial and carrier communication technology-based voice broadcasting telephone control system according to claim 4, characterized in that: when a voice talkback switch of a certain number extension set or a host is pressed down, the voice talkback board carries a voice radio frequency signal, the voice radio frequency signal is sent to other extension sets or hosts through the communication cable, the voice is demodulated out through the voice talkback board, and the voice radio frequency signal is amplified through the power amplification unit and then output to the loudspeaker and played.

7. The voice broadcasting telephone control system based on the single-core coaxial and carrier communication technology as claimed in claim 1, wherein: the 9.6V positive end of the chargeable power supply is led to the A/D unit by a wire, converted into the voltage data of the current power supply positive end and transmitted into the CPU, the CPU judges whether the data reaches a fully charged threshold value, if the data reaches the threshold value, the CPU controls the electronic switch unit to be switched off through an I/O port so as to cut off the charging of the storage battery.

8. The voice broadcasting telephone control system based on single-core coaxial and carrier communication technology according to any one of claims 1 to 7, characterized in that: the IC, U200, U201, Q200, Q201 and electronic switches D200, D201, etc. form a circuit unit of a carrier wave generator, the data TSD to be transmitted is added to the positive terminal of D200, so that the data to be transmitted is in a serial mode, the data is in a level of "1", namely 200 is conducted, a frequency signal at the end of "Q1", such as 76.8Hk, passes through D200 smoothly, is coupled to R015 of FIG. 3, is further buffered and amplified by Q3, is transmitted by a J1 socket, is coupled to a coaxial communication cable, if the data to be transmitted is in a level of "0", the frequency shift keying of the data to be transmitted is conducted by Q203, D201 is conducted, namely a carrier frequency signal of 88.8Hk representing the level of "0", passes through D201 and is coupled to a buffer amplifier unit Q3, and is also coupled to the communication coaxial cable, namely frequency shift keying modulation of the data to be transmitted is completed, and is transmitted to a bus line of the coaxial cable, so that other extension data of extension or extension sets are demodulated, specifically, referring to fig. 4, a machine receives a carrier signal of the modulated data through a coaxial cable, demodulates the data, performs pre-amplification on the data by Q300 and Q301, amplifies the carrier signal to a certain amplitude, inputs the amplified carrier signal to a U301 unit, demodulates and restores 1 level or 0 level data correspondingly, and transmits the demodulated carrier signal to the CPU in fig. 1 to restore the data to self-receiving data, that is, how the data of the system is transmitted and received in a carrier communication manner, that is, how the data is modulated and demodulated by the data carrier.

Technical Field

The invention belongs to the technical field of single-core coaxial and carrier communication, and particularly relates to a voice broadcast telephone control system based on a single-core coaxial and carrier communication technology.

Background

The existing coal mine voice broadcasting system combines the voice spot call function and the data control to realize the underground voice communication and the spot voice of a coal mine, and realizes that the station number and the emergency stop state data of a single broadcasting extension are sent to a broadcasting host, and the communication and the control are carried out with an upper computer MODBUS protocol. And every 100 meters is required to be provided with a pair of aviation connectors. To about 2000 meters total communication line can bring the virtual connection between the aviation plug and socket, oxidation scheduling problem, cause the communication not smooth or the trouble, and still have the communication cable overweight, cause the problem of pulling the difficulty, in order to solve above-mentioned problem, this patent application proposes the pronunciation to expand and broadcast telephone control system based on single core coaxial and carrier communication technique, utilize single core coaxial cable to realize charging source, communication data line, voice communication and realize all functions on a single core coaxial cable line, and about 3000 meters just need a pair of connection plug and socket, thoroughly stop the plug and socket because of the fault that the oxidation caused of virtual connection, and furthest's high cost because of the cable brings, and the stay wire as the scram control switch can make its weight greatly reduced, reduce the intensity of labour of acting as the stay wire.

Disclosure of Invention

To solve the problems set forth in the background art described above. The invention provides a voice broadcast telephone control system based on single-core coaxial and carrier communication technology, which has the characteristics of improving the utilization rate of an internal communication bus, greatly reducing the cost and greatly reducing the labor intensity.

In order to achieve the above object, the present invention provides a voice broadcast telephone control system based on single-core coaxial and carrier communication technology according to the following technical scheme, which comprises a voice broadcast host system, a voice broadcast extension system, a broadcast extension and host data communication system, and a communication system of a broadcast extension host and an upper computer, wherein the voice broadcast host system and the voice broadcast extension system have the same components, and the voice broadcast extension system comprises a radio frequency voice intercom unit, a carrier modem, a CPU, an emergency stop module, a storage battery power supply module, a storage battery charging control unit, a voltage stabilizing circuit module of a charging power supply, an isolation inductance module of radio frequency, carrier and charging current, a DC-DC unit, an a/D unit, a click voice generator, and a voice transceiver module.

Preferably, the system also comprises a data transceiving module which consists of a serial communication port of a CPU, a carrier transmitter, a carrier demodulator, a radio frequency isolation inductor and a communication coaxial cable and forms a communication function of sensor data and controlling data transceiving, wherein the communication function comprises emergency stop data, an emergency stop switch shown in figure 1 is linked by the coaxial cable, when the coaxial cable is pulled, the emergency stop switch is triggered to be closed and linked with a certain I/O port of a singlechip of a certain extension or host, when the emergency stop switch is pressed, the level of the certain I/O port of the singlechip is changed, if the level is changed from high to low, emergency stop state data and a certain number address code of an extension telephone are generated after being processed by the singlechip, and the emergency stop state data and the certain number address code of the extension telephone are packed together with other data and are sent to a carrier modulation circuit and the communication coaxial cable of the certain extension telephone;

the charging control system is led to the A/D unit from a 9.6V positive end by a wire, converted into voltage data of the current power supply positive end and transmitted into the CPU, the CPU judges whether the data reaches a fully charged threshold value, and if the data reaches the fully charged threshold value, the CPU controls the electronic switch unit to be switched off through an I/O port so as to cut off the charging of the storage battery;

when the extension set or the host needs to perform voice dotting, a dotting switch is pressed down by a certain extension set or the host, a dotting voice generator generates an audio signal, the audio is modulated to be sent by a radio frequency voice module, other extension sets receive the audio signal and make a sound by a loudspeaker, the dotting switch is pressed down discontinuously to represent different voice dotting times, and the extension set or the host receives the voice at the moment and understands the voice as representing different appointed information;

a CPU control module; CPU, Q3, D200, D201, modulation electronic switch unit composed of U200, U201, Q200 and Q201, the I/O port of CPU is TXD data, which includes each expanding host, extension sensor data and emergency stop data, namely, the data to be sent is added to the electronic switch unit and sent to the carrier generator unit composed of U200, U201, it is modulated at low speed 300bps and the carrier is converted into modulated carrier signal (FSK), that is, frequency shift keying signal, and after amplified to a certain amplitude by the amplifier, it is output to the communication coaxial cable and sent out, carried to the communication cable, received by the most front voice expanding host, coupled to the carrier demodulator of the voice expanding host, and recovered to TTL data, then input to CPU, and the CPU cooperates with software to expand the frame data of the address of extension by a certain voice, the station number is stored in the host computer, if the same data is sent by another voice broadcasting extension set at this time, the above-mentioned process is repeated and stored, at this time, for example, the host computer calls the voice broadcasting extension host computer in the form of MODBUS protocol, the broadcasting extension host computer firstly increases the communication speed, for example, 9600bps (the data sent by the broadcasting extension set is low speed 300 bps), the internal and external communication channel switching relay is switched to the communication state of the broadcasting extension telephone system and the host computer, and the MODBUS protocol is also returned to the host computer, the host computer carries out corresponding data processing, the data sent by the host computer is controlled by the host computer and passes through the RS232-TTL switching relay, at this time, the communication state of the broadcasting extension telephone system and the host computer is switched to, the communication speed of the broadcasting extension host computer is firstly increased, at this time, the data of the host computer at this time of 9600bps is modulated by the host computer, and the data is sent to each extension at the lower end by a coaxial cable, demodulated by the extension telephone extension machine, is transmitted back to the extension host machine by a carrier path after corresponding processing is carried out, is switched to a communication state between the extension telephone host machine and the upper computer by an internal and external communication channel switching relay, and is sent to the upper computer to carry out corresponding processing.

Preferably, the data transceiver module comprises a serial communication port of the CPU, a carrier transmitter, a carrier demodulator, a radio frequency isolation inductor, a communication coaxial cable, and emergency stop data.

Preferably, the serial communication port I/O (TXD) of the CPU is provided for the modulation end of the carrier wave generator in a TTL level form, the carrier wave of the carrier wave generator is modulated into a modulated carrier wave in an FSK mode, and after being amplified to a certain amplitude by the amplifier, the amplified signal is output to a communication coaxial cable and sent out, carried to the communication cable and received by a voice broadcast host at the forefront end, and coupled to the carrier demodulator of the voice broadcasting host, and restored to TTL data, and then inputted to CPU, and the CPU and the software are cooperated to broadcast the frame data by the address data of a certain voice broadcasting extension, i.e. the station number is stored in the host computer, if the same data is sent by another voice broadcasting extension set at this time, the above process is repeated and stored, at this time, like the upper computer, calling the voice broadcasting host in MODBUS protocol mode, the broadcasting host firstly increases the communication speed.

Preferably, the voice broadcasting telephone communication between the extension set and between the classification set and the host is completed through a radio frequency voice talkback board in the system.

Preferably, when a voice intercom switch of a certain number extension set or a host is pressed, the voice intercom board carries a voice radio frequency signal, the voice radio frequency signal is sent to other extension sets or hosts through the communication cable, the voice is demodulated through the voice intercom board, the voice is amplified through the power amplification unit and then output to the loudspeaker, and the voice is played.

Preferably, the 9.6V positive end of the rechargeable power supply is led to the A/D unit through a wire, converted into voltage data of the current positive end of the power supply and then transmitted to the CPU, the CPU judges whether the data reaches a fully charged threshold value, and if the data reaches the fully charged threshold value, the CPU controls the electronic switch unit to be switched off through an I/O port so as to cut off the charging of the storage battery.

Preferably, the IC, U200, U201, Q200, Q201, electronic switches D200, D201, etc. form a circuit unit of a carrier wave generator, the data to be transmitted TSD is added to the positive terminal of D200, so that the data to be transmitted is in serial mode, the data is in "1" level, i.e. 200 is turned on, the frequency signal at "Q1", e.g. 76.8Hk, passes through D200 smoothly, and is coupled to R015 of fig. 3, and is further buffered and amplified by Q3, and then is transmitted by J1 socket, and is coupled to the coaxial communication cable, as described above, if the data to be transmitted is in "0" level, the carrier frequency signal is guided to "1" level by Q203, D201 is turned on, i.e. 88.8Hk representing "0" level, passes through D201, is coupled to a buffer amplifier unit Q3, and is also coupled to the communication coaxial cable, that is frequency shift modulation of the data to be transmitted is completed, and is transmitted to the coaxial cable bus, in order to allow other extension sets or hosts to demodulate data, specifically referring to fig. 4, a certain machine receives a carrier signal of the modulated data through a coaxial cable, the data to be demodulated is pre-amplified by Q300 and Q301, the carrier signal is amplified to a certain amplitude, then the data is input to a U301 unit, the data of 1 level or 0 level is recovered by corresponding demodulation, and then the data is transmitted to a CPU in fig. 1 and recovered into self-receiving data. The above is how the data of the system is transmitted and received in a carrier communication manner, that is, the data carrier modulation and demodulation are realized.

Compared with the prior art, the invention has the beneficial effects that: 1. the communication mode of the extension set and the host adopts an interruption mode, which is beneficial to reducing data flow to the maximum extent, preventing a plurality of extension sets from missing important information or having overlong waiting time, and improving the utilization rate of an internal communication bus.

2. The communication between the host and the extension adopts a carrier communication mode, the language communication mode also adopts a radio frequency carrier communication technology, and the charging power supply loading of each machine can be compared with the scheme for realizing the single-core coaxial cable connection mode and the prior seven-core coaxial cable connection mode, so that the cost is greatly reduced.

3. The emergency stop switch is pulled by the single-core coaxial cable, the required tension is small, and the labor intensity is greatly reduced.

The parts of the device not involved are the same as or can be implemented using prior art.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic flow diagram of the present invention;

FIG. 2 is a schematic diagram of a carrier generator modulation circuit according to the present invention;

FIG. 3 is a schematic circuit diagram of a buffer amplifying unit for carrier modulation according to the present invention;

fig. 4 is a schematic circuit diagram of a carrier demodulation unit according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.