CN202602772U

CN202602772U - Remote telephone key management box

Info

Publication number: CN202602772U
Application number: CN 201220202678
Authority: CN
Inventors: 裘浩伟
Original assignee: Shaoxing Electric Power Bureau
Current assignee: State Grid Corp of China SGCC; Shaoxing Electric Power Bureau
Priority date: 2012-05-07
Filing date: 2012-05-07
Publication date: 2012-12-12
Anticipated expiration: 2022-05-07

Abstract

The utility model discloses a remote telephone key management box comprising a telephone control module, a switching power module, a 12V external power socket, an electromagnetic lock and a key switch, wherein the positive and negative poles of the telephone control module are connected with the 12V external power socket in series after being respectively connected with the positive and negative poles of the switching power module in parallel; the electromagnetic lock is connected in series between the 12V external power socket and the telephone control module; the electromagnetic lock is connected with the key switch in parallel; and a telephone interface is arranged on the telephone control module. The remote telephone key management box has the advantages of being safe and reliable, being quick and convenient to use, being convenient to mount and maintain, being low in production cost, and being widely applied.

Description

A kind of remote phone key management box

Technical field

The utility model relates to a kind of wired Local Network or GSM/CDMA wireless access device of utilizing, especially a kind of remote phone key management box.

Background technology

At present, in electric power system, transformer station is unattended to have become development trend, and new management mode is brought new problem, and wherein transformer station's key management problem is also given birth to therefrom.Arbitrarily pass in and out master-control room, hyperbaric chamber in order to stop on-the-spot security personnel, rear service personnel and other irrelevant staff, continue and protect the chamber, many units have taked various ways.As utilize with number envelope management key, and remove envelope by the work director, and take key, to seal up for safekeeping again by the operations staff with the back, this method need often be removed field replacement band numbering envelope; Utilize safety box keeping key; All be equipped with safety box at each unattended substation, key is stored in the safety box, need when the staff takes to the active station application; After agreeing, inform staff's password; Shortcoming is to tell staff's password, causes password to reveal easily, can not play the effect of being kept absolutely secret; Gate control system is installed, and installation needs a large amount of expenses, and need tell staff's password equally.

Therefore, must find under present circumstances a kind of, the manpower that need not cost a lot of money, financial resources, convenient again, reliable means, the key management problem of coming effectively to solve unattended substation.

The utility model content

The purpose of the utility model is to provide a kind of remote phone key management box, the utlity model has safe and reliablely, uses rapid and convenient, convenient for installation and maintenance, cheap for manufacturing cost, widely applicable characteristics.

In order to reach above-mentioned purpose, the solution of the utility model is:

A kind of remote phone key management box comprises telephone control module, switch power module, 12V external power supply socket, electromagnetic lock, key switch; The positive and negative level of wherein said telephone control module is connected with the 12V external power supply socket with the positive and negative level parallel connection back of switch power module respectively, also is in series with electromagnetic lock between described 12V external power supply socket and the telephone control module; Described electromagnetic lock is parallelly connected with key switch; On the described telephone control module telephony interface is installed.

Between the positive level of described telephone control module and the positive level of switch power module, positive pole between the negative level of telephone control module and the negative level of switch power module after the parallel connection and negative pole are connected with anodal with the negative pole of 12V external power supply socket respectively.

The beneficial effect of the utility model is: the utlity model has safe and reliablely, use rapid and convenient, convenient for installation and maintenance, cheap for manufacturing cost, widely applicable characteristics.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Embodiment

As shown in Figure 1, a kind of remote phone key management box of present embodiment comprises telephone control module 1,

switch power module

2,12V external power supply socket 3, electromagnetic lock 4, key switch 5; The positive and negative level of wherein said telephone control module 1 is connected with 12V external power supply socket 3 with the positive and negative level parallel connection back of switch power module 2 respectively; Say that further the positive pole between the negative level of telephone control module 1 and the negative level of switch power module 2 after the parallel connection is connected with positive pole with the negative pole of 12V external power supply socket 3 respectively with negative pole between the positive level of positive level and switch power module 2 of described telephone control module 1.Also be in series with electromagnetic lock 4 between described 12V external power supply socket 3 and the telephone control module 1; Described electromagnetic lock 4 is parallelly connected with key switch 5; On the described telephone control module 1 telephony interface 6 is installed, direct connection telephone machine on the telephony interface 6.

The circuit core element of described telephone control module 1 is the STC12C2052 single-chip microcomputer of ATMAL company, it undertake signal and data collection, analyze work such as computing, output control.Comprise eeprom circuit in the module; Include house dog and voltage monitor; This circuit combines with STC12C2052, promptly solved to be provided with to keep the problem of not losing after the data power down, also solved software program run fly to reset, problem that low-voltage detects protected data; Improved the anti-interference of single-chip microcomputer greatly, common guarantee the reliably working of circuit.The bell signal of the telephone set that on telephone control module 1 detects from telephony interface 6, connects, and simulate off-hook after reaching the ringing number of setting, the calling party can hear that in telephone receiver single-chip microcomputer sends the prompting of ringing for three in the telephone control module 1.The calling party is through the input password, and module verifies that to password password correctly sends the prompt tone that checking is passed through; Password bad sends different prompt tones, and allows the calling subscriber to input password once more; Password is correct for the second time; Get into the program of back, twice password is all incorrect, telephone control module 1 automatic hand-up.After caller is correctly inputed password, just can pass through long-range telephone key, operate by numerical key; The 4 charged work of control electromagnetic lock, chamber door automatically springs open owing to be installed in the effect of the reversed polarity strong magnets on the casing; The automatic involution of exit relay behind the 2S; Electromagnetic lock 4 dead bolts eject, and prevent the long damage of electromagnetic lock 4 electrification time, and ready for closing the door.

Built-in switch power module 2 provides normal working power for whole device.Power supply is input as AC220V, and the process Switching Power Supply provides the output of DC12V DC power supply, output power of power supply 20W.

But described remote phone key management box built-in switch power module relay indicating light, telephone control module relay indicating light and telephone connection status indicator lamp.

Behind remote phone key management box dead electricity or module failure, key locker keeps shut, and guarantees that key can not be help himself freely to; In order under situation such as telephone controller fault, built-in switch power failure, controller failure and both simultaneous faultss of built-in switch power supply, telephone network fault, to open chamber door, device has designed DC12V external power interface 3 and has needed key operated key switch 5.When the built-in power fault, insert external power supply on the DC12V external power interface 3, DC12V external power interface 3 is automatically with built-in switch power cathode breaking circuit, and recovery device is supplied power; When telephone control module fault or telephone network fault, available key switch is directly opened chamber door through key switch 5; Same source constantly when both simultaneous faultss, external power supply capable of using, and use key switch 5 to open chamber doors.The present embodiment device has safe and reliable, uses rapid and convenient, convenient for installation and maintenance, cheap for manufacturing cost, widely applicable characteristics.

Claims

1. a remote phone key management box is characterized in that comprising telephone control module (1), switch power module (2), 12V external power supply socket (3), electromagnetic lock (4), key switch (5); The positive and negative level of wherein said telephone control module (1) is connected with 12V external power supply socket (3) respectively and after the positive and negative level parallel connection of switch power module (2), also is in series with electromagnetic lock (4) between described 12V external power supply socket (3) and the telephone control module (1); Described electromagnetic lock (4) is parallelly connected with key switch (5); Telephony interface (6) is installed on the described telephone control module (1).

2. a kind of remote phone key management box as claimed in claim 1; It is characterized in that: between the positive level of described telephone control module (1) and the positive level of switch power module (2), positive pole between the negative level of telephone control module (1) and the negative level of switch power module (2) after the parallel connection and negative pole are connected with anodal with the negative pole of 12V external power supply socket (3) respectively.