CN206259999U - A kind of tunnel crisis phone only terminal - Google Patents

Abstract

The utility model provides a kind of tunnel crisis phone only terminal, including a shell and the communication module being fixed in the shell, the communication module includes a main control unit and the 2M interface circuits, a photoelectric sensor circuit and the sound circuit that are connected with the main control unit, the 2M interface circuit external cables, the photoelectric sensor circuit connects an at least push-key, the sound circuit connection one loudspeaker and a microphone.The whole shell of this terminal does encapsulation process, can dust-proof, moistureproof, anti-electromagnetic interference etc., good reliability is full-featured, disclosure satisfy that the use requirement under tunnel adverse circumstances.

Description

A kind of tunnel crisis phone only terminal

Technical field

The utility model is related to communication technical field, specially a kind of tunnel crisis phone only for being applied to various tunnel environments Terminal.

Background technology

At present, track side telephone post is provided with every 1500 meters in general tunnel, but does not configure telephone set substantially, indivedual configurations Also all it is common phone, the performance indications such as its dust-proof, moistureproof, anti-electromagnetic interference cannot meet environment in tunnel using will Ask, and steal, breakoff phenomenon it is serious.Attendant is general by the way of telephone set is carried with, but in process of actually speedily carrying out rescue work In also need to field splicing, delay is speedily carried out rescue work the time, when there is multiple spot accident, it is impossible to meet the use requirement at scene.And electricity Phone is pseudo-terminal, once being short-circuited or mis-hanging-on, command centre cannot just relate to scene, analog telephone tradition Dial mode also can be delayed the opportunity of speedily carrying out rescue work.

Utility model content

In order to overcome, existing tunnel terminal reliability is poor, unitary function problem, and the utility model provides one kind and is applied to The tunnel crisis phone only terminal of various tunnel environments, whole terminal enclosure does encapsulation process, can dust-proof, moistureproof, anti-electromagnetism do Disturb, good reliability is full-featured, disclosure satisfy that the use requirement under tunnel adverse circumstances.

In order to solve the above technical problems, the technical solution of the utility model is：

A kind of tunnel crisis phone only terminal, including a shell and the communication module being fixed in the shell, the communication mould Block includes a main control unit and the 2M interface circuits, a photoelectric sensor circuit and the voice electricity that are connected with the main control unit Road, the 2M interface circuit external cables, a photoelectric sensor circuit connection at least push-key, sound circuit connects a loudspeaker With a microphone.

Further, the 2M interface circuits include an E1 interface chips and a Wiring module, the Wiring module and outside Cable and a power module are connected.

Further, at least one or more pairs of cables are connected for telephone terminal is powered by a tunnel access switch.

Further, the photoelectric sensor circuit includes a photoelectric sensor, and the photoelectric sensor is by push-key electricity Road is connected with the push-key.

Further, the sound circuit includes a speech process chip, and the speech process chip passes through a power amplifier It is connected with the loudspeaker, is connected with the microphone by a microphone circuit.

Further, the push-key is 6, is arranged in the middle of the outer casing frontispiece, and each push-key top is provided with an instruction Lamp.

Further, the loudspeaker is arranged at outer casing frontispiece top, and sound pressure level is 100dB, and frequency is 300~ 18,000Hz。

Further, the microphone is the compensation microphone of noise, is arranged at the outer casing frontispiece lower section.

Further, the preset 2 water proof and dust proof cable fixing heads of the outer casing underpart, are connected to the 2M interface circuits, For introducing external cable, there is provided power line is passed in and out with holding wire.

Further, the case back is provided with an at least access aperture, and the steel plate of tunnel wall is fixed on by the access aperture On upper or metope.

Further, the terminal overall dimensions are 445 × 140 × 170 millimeters, using IP66 integrated designs.

The beneficial effects of the utility model：

This tunnel crisis phone only terminal can realize the function that many conventional analog telephone machine terminals cannot be realized, main bag Containing following functions.

Function is in hot line choosing：Exterior of terminal sets 6 push-keys, and 6 heat of purpose user are flexibly realized according to network management configuration Line call function, attendant directly can call corresponding object by push-key.

Self-diagnostic function：Terminal timing itself each several part is carried out self-inspection, test oneself, self diagnosis, can be with by 2M interfaces When relevant information is reported network management center, including terminal positional information, terminal call state, terminal fault state etc..

Priority feature：Terminal supports that priority is divided, and the call of current low level can be strong by high level call Insert/toll breakdown, it is to avoid analog station once in call, problem that other staff cannot relate to.

Centrally connected power supply function：Tunnel access switch is terminal using the cable of one or more pairs of 0.9mm or 1.2mm line footpaths Centrally connected power supply, without external power supply.

IP66 integrated designs：Terminal uses IP66 integrated designs, can be used in the environment of moist many dirt, whole machine chi It is very little small, can conveniently be fixed on smooth metope, directly whole machine can be changed after failure.

Brief description of the drawings

Fig. 1 is crisis phone only terminal front side schematic diagram in tunnel of the present utility model.

Fig. 2 is tunnel crisis phone only terminal inner communication module schematic diagram of the present utility model.

Specific embodiment

To enable features described above of the present utility model and advantage to become apparent, special embodiment below, and coordinate appended Figure is described in detail below.

This implementation embodiment provides a kind of tunnel crisis phone only terminal, as shown in figure 1, terminal uses integrated design, eventually End housing uses fire-retardant insulating material, and whole terminal enclosure does encapsulation process, can integrally reach the protection level of IP66, the end End meets the use requirement under tunnel adverse circumstances.Outer casing frontispiece upper end is horn region, and centre is push-key area, and bottom is wheat 2 cable fixing heads are arranged at Ke Feng areas, terminal bottom, are generally used for 3*4 low-frequency cables in incoming tunnel, point end of incoming cables and outlet End, wherein 4 cores are used to access 2M signals, 8 cores are used to access power supply.Signal is linked in sequence using tandem mode, and power supply is using simultaneously Ray mode.

Terminal inner set a communication module, as shown in Fig. 2 the communication module include a main control unit and with the master control list A 2M interface circuits, a photoelectric sensor circuit and a sound circuit that unit connects, the 2M interface circuits include E1 interface chips And Wiring module, the photoelectric sensor circuit include photoelectric sensor and push-key circuit, the sound circuit include speech process core Piece, microphone circuit and power amplifier.Corresponding cell board, including main control unit plate, 2M interface units are specifically fixed by copper post Plate, photoelectric sensing push-key cell board, sound circuit cell board and power module cell board.Terminal overall dimensions be 445 × 140 × 170 millimeters, weight is for about 4 kilograms.

Terminal can at most provide 6 push-keys, be connected with push-key circuit, and user directly pulls by push-key hot line call to phase The pre-set user answered.6 push-key areas of terminal front side middle setting, there is provided cried to attendant's choosing and used, in each push-key area There is indicator lamp side, points out user's call proceeding.

Horn region above terminal front side is provided with internal loudspeaker, and the loudspeaker is connected to power amplifier, sound pressure level (4W, apart from 25cm) is 100dB, and loudspeaker frequency ranges are 300~18,000Hz, maximum environmental noise 110dB.Terminal front side Lower section is provided with the compensation microphone of noise, is connected to microphone circuit, and loudspeaker and microphone are adapted to noisy environment call, institute There is part all to possess functions of waterproof and dustproof.

Terminal bottom is prefixed water proof and dust proof cable fixing head, is connected to the Wiring module of 2M interface circuits, for introducing External cable, there is provided power line and the holding wire turnover of terminal.Cable fixing head has 2 altogether, and inlet wire and outlet are introduced respectively. Terminal uses cable connection with corresponding tunnel access switch, receives the feed of tunnel main frame, and is managed by network management center, refers to The center of waving can at any time understand the service condition of terminal.

Steel plate access aperture has been reserved at terminal back, whole terminal can be fixed on by the access aperture steel plate of tunnel wall On.The terminal can also be fixed on other vertical smooth metopes according to demand, can be fixed on smooth wall by back screw On face.

The tunnel crisis phone only terminal that the utility model is provided, whole terminal enclosure does encapsulation process, can be dust-proof, anti- Damp, anti-electromagnetic interference etc., good reliability is full-featured, disclosure satisfy that the use requirement under tunnel adverse circumstances.

Claims (10)

1. a kind of tunnel crisis phone only terminal, it is characterised in that including a shell and the communication module being fixed in the shell, The communication module includes a main control unit and the 2M interface circuits, the photoelectric sensor circuit and that are connected with the main control unit Sound circuit, the 2M interface circuit external cables, a photoelectric sensor circuit connection at least push-key, sound circuit connection one Loudspeaker and a microphone.

2. crisis phone only terminal in tunnel according to claim 1, it is characterised in that the 2M interface circuits connect including an E1 Mouth chip and a Wiring module, the Wiring module are connected with external cable and a power module.

3. crisis phone only terminal in tunnel according to claim 1, it is characterised in that connected by a tunnel access switch At least one pair of or multiple-twin cable are powered for telephone terminal.

4. crisis phone only terminal in tunnel according to claim 1, it is characterised in that the photoelectric sensor circuit includes Photoelectric sensor, the photoelectric sensor is connected by a push-key circuit with the push-key.

5. crisis phone only terminal in tunnel according to claim 1, it is characterised in that the sound circuit is included at a speech Reason chip, the speech process chip is connected by a power amplifier with the loudspeaker, by a microphone circuit and the wheat The connection of gram wind.

6. crisis phone only terminal in tunnel according to claim 1, it is characterised in that the push-key is 6, is arranged at described In the middle of outer casing frontispiece, each push-key top is provided with an indicator lamp.

7. crisis phone only terminal in tunnel according to claim 1, it is characterised in that the loudspeaker is arranged at the shell Upper front, sound pressure level is 100dB, and frequency is 300~18,000Hz；The microphone is the compensation microphone of noise, is set In outer casing frontispiece lower section.

8. crisis phone only terminal in tunnel according to claim 1, it is characterised in that preset 2 waterproofs of outer casing underpart Dust-proof cable fixing head, is connected to the 2M interface circuits, for introducing external cable, there is provided power line is passed in and out with holding wire.

9. crisis phone only terminal in tunnel according to claim 1, it is characterised in that the case back is provided with least and connects Enter hole, be fixed on the steel plate of tunnel wall or on metope by the access aperture.

10. crisis phone only terminal in tunnel according to claim 1, it is characterised in that the terminal overall dimensions are 445 × 140 × 170 millimeters, using IP66 integrated designs.