CN2726238Y

CN2726238Y - Remote-centralized control switch

Info

Publication number: CN2726238Y
Application number: CN 200420062960
Authority: CN
Inventors: 张尧弟
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-07-20
Filing date: 2004-07-20
Publication date: 2005-09-14
Anticipated expiration: 2014-07-20

Abstract

The utility model relates to a remote-centralized control switch, in particular to the remote-centralized control switch which can carry out the long distance control in real time of the electrical equipment by making use of the common telephone network. The utility model comprises a central processing unit, an analogous machine-picking circuit unit (1), a DTMF decoding unit (2), a ringer testing circuit (3), a command input unit (6), an audio processing unit (4), a state indication circuit (9), and a control output performance unit (5). The utility model is characterized in that the remote-centralized control switch comprises a host computer part and a control panel part; the command input unit (6) is composed of a keyboard scanning circuit; the control output performance unit (5) is composed of a plurality of contact electronic switches and the driving circuits of the contact electronic switches; a plurality of controlled electric appliances can be selectively controlled through coding the instruct formed by the multidigit number. The whole system which can be divided into the host computer part and the control panel part is favourable for reasonably and flexibly arranging the position of the controlled electric appliances and the operation panel, and the whole system is convenient to concentratedly control and manage.

Description

A kind of remote centralized control switch

Technical field

The utility model relates to a kind of Remote switch, particularly utilizes public telephone network electric equipment to be carried out the Remote switch of remote live control.

Background technology

In various medium-long range remote control switch modes, utilize public telephone network to realize the remote control switch of Remote owing to have that structure is relatively simple, reliability is high, wiring is easy to characteristics and day by day is widely used.As in the patent No. be 02258688.1, publication number is 2580684 to disclose a kind of remote control switch of this type in the utility model patent in October in 2003 disclosed " remote control switch " on the 15th, this switch mainly is made up of infrared emission circuit and infrared receiving circuit, circuit for answering, DTMF decoding circuit, MCU, ring detecting circuit, instruction input circuit and working indicating.It is online that ring detecting circuit is connected public telephone, and the taking-up bell signal is also changed, and is sent to MCU; Circuit for answering is simulated off-hook under the control of MCU; The DTMF decoding circuit is decoded to the touch-tone signal on the telephone wire, and with decoded signal input MCU; The instruction input circuit is set the running parameter of MCU; The infrared receiving circuit that is used for to the infrared emission circuit of controlled electric appliance emission remote control command and is used to be provided with the controlled electric appliance remote control command is connected electrically in MUC, accepts the control of MCU.Described DTMF decoding circuit is decoded to the touch-tone signal on the telephone wire, and gives MCU with 4 bits consistent with control routine.

This utility model also comprises speech processing module output language signal under the control of MCU.

This utility model also comprises the working indicating that connects on the MCU, and it is presented at the operating state of MCU on the display panel.

This utility model realizes multiple electric equipment is carried out remote live control by telephone network, infrared emission and receiving circuit, it is long to have remote control distance, control is reliable, control range is wide and use advantages such as simple, as long as in the scope that telephone network covers, all can realize Remote.But the remote control switch of this structure yet exists some following defectives: 1, can only control the electrical equipment that those self have the infrared remote-control operation device: as television set, air-conditioning, video disc player etc., versatility is relatively poor; 2, use before, need the receive window of the infrared receiving circuit of infrared emission circuit and controlled electric appliance is carried out the adjustment of distance and angle, otherwise can not reliably control, therefore use comparatively trouble; 3, can not carry out Remote or execute-in-place selectively to a plurality of electrical equipment; 4, on-the-spot by key control can only " open " again by " opening ", " pass ", " pass " alternate operation that circulates successively.Because the existence of these problems has limited its popularization and the scope of application.

The utility model content

The utility model purpose is to provide a plurality of electrical appliances of a kind of may command for solving the above-mentioned problems in the prior art, use remote centralized control switch simple, highly versatile.

For solving the problems of the technologies described above, the technical solution that the utility model adopted is as follows: a kind of remote centralized control switch, comprise CPU, simulation circuit for answering unit, DTMF decoding unit, ring detecting circuit, instruction input unit, Audio Processing Unit, condition indication circuit and control output performance element:

It is online that ring detecting circuit is connected public telephone, and the taking-up bell signal is also changed, and is sent to CPU;

Off-hook is simulated in simulation circuit for answering unit under the control of CPU;

The DTMF decoding unit is decoded to the touch-tone signal on the telephone wire, and with decoded coded command signal input CPU;

The instruction input unit is used for on-the-spot running parameter or the operational order of setting CPU;

It is online that the speech output end of Audio Processing Unit is connected public telephone, and control end is connected on the CPU, the speech signal that output is prerecorded under the control of CPU;

The control command of control output performance element execution CPU switches on or off the working power operation of corresponding controlled electric appliance;

Condition indication circuit receives from the controlled electric appliance state information of CPU input and with its real-time demonstration;

It is characterized in that described remote centralized control switch comprises a main frame part and a control panel partly:

Described main frame partly mainly comprises first CPU, simulation circuit for answering unit, DTMF decoding unit, ring detecting circuit, Audio Processing Unit and control output performance element, wherein control output performance element is made of a plurality of contact electronic switches and drive circuit thereof, the control end of drive circuit is connected with the delivery outlet of first CPU, and the number of electronic switch can be provided with a plurality of as required;

Described control panel partly comprises second CPU, instruction input unit, condition indication circuit and clock and display circuit:

Described instruction input unit is made of keyboard scanning circuit, and the coding type instruction is inputed to CPU;

Described condition indication circuit receives from the controlled electric appliance state information of CPU input and with its real-time demonstration;

Described clock and display circuit are connected with the CPU data, are used to show real-time time and carry out the control information processing relevant with the time for CPU provides real time information for CPU;

Be provided with data telecommunication line between first CPU of described main frame part and control panel second CPU partly.

Adopt the remote centralized control switch of said structure, encode by the instruction that multidigit number is formed, make its address information that comprises controlled electric appliance and switching manipulation information, it so no matter to be the coded command of importing through the keyboard scanning circuit at public telephone network or scene from long-range, after CPU is handled compiling of instruction, just can learn it specifically is which controlled electric appliance to is wherein operated, performance element is exported in output control corresponding instruction to control, thereby controls the working power of corresponding switch connection or the corresponding controlled electric appliance of cut-out.

Adopt two such structures of CPU, whole system is divided into main frame part and panel control part, also helps flexibly, reasonably is provided with the position of controlled electric appliance and guidance panel, is convenient to centralized control and management.

In addition, owing to also be provided with clock circuit in the panel control partly, can provide temporal information for the remote centralized control switch, therefore can also carry out timing open and close operation to controlled electric appliance, strengthen the function of remote centralized control switch widely, enlarged range of application.

The utility model is described in further detail below in conjunction with accompanying drawing, provides embodiment simultaneously

Description of drawings

Accompanying drawing 1 is an embodiment circuit system theory diagram;

Accompanying drawing 2 is a control program FB(flow block) of the present utility model;

Accompanying drawing 3 is an embodiment circuit system schematic diagram.

Embodiment

Shown in Fig. 1,3, this control switch is that host machine part and control panel are partly formed by two parts.In host machine part, include first CPU, simulation circuit for answering unit 1, DTMF decoding circuit 2, ring detecting circuit 3, Audio Processing Unit 4 and control output performance element 5.

The higher PIC16C4-1 single-chip microcomputer of the optional price ratio of first CPU is a core, and be provided with the integrated 24C01 of EEPROM as instruction storage, under the control of internal processes instruction, handle various input/output signals, when output control command data format is set, except the controlled electrical appliances sign indicating number, the address code that also will comprise controlled electric appliance, so that can control the controlled electric appliance of appointment, the FB(flow block) of its internal processes instruction as shown in the figure.

Simulation circuit for answering unit 1 is made up of the DC load that is connected across the online bridge rectifier of public telephone and is connected on the rectification circuit DC side, the electronic switch control that described load is made of switch triode inserts or off-hook or on-hook action are simulated in disconnection, the control end of electronic switch is connected with the PIC16C4 single-chip data delivery outlet of first CPU, accepts its control;

Ring detecting circuit 3 is formed by being connected across public telephone online low pass branch road and photoelectrical coupler, the output of photoelectrical coupler is connected on the PIC16C4 single-chip data input port of first CPU, and photoelectrical coupler picks up bell signal and is entered in first CPU.

DTMF decoding unit 2 is made up of DFMF decoding integrated circuit HT9170D and peripheral cell thereof, and the dtmf tone that public telephone is online is sent in the described first CPU PIC16C4-1 single-chip microcomputer behind the signal decoding frequently.

Audio Processing Unit 4 is made up of recording playback sound integration module ISD4003 and peripheral cell thereof, discharge circuit, it is online that speech output end is connected public telephone, the control end of recording playback sound integration module ISD4003 is connected on the PIC16C4 single-chip microcomputer of first CPU and controlled by it, and the output voice are delivered to public telephone on the net as the operation indicating sound after discharge circuit amplifies.

Control output is carried out and is made of a plurality of contact electronic switches and drive circuit thereof, the contact electronic switch is served as by miniature relay, drive circuit is selected for use open collector to drive array 2003 and is served as, the control end that drives array 2003 is connected with the delivery outlet of the PIC16C4 single-chip microcomputer of first CPU, the number of electronic switch can be provided with a plurality of as required, is provided with 8 in this switch.

Second CPU in the control panel part adopts with single-chip microcomputer PIC16C64-2 equally as the control and treatment core, the keyboard scan input circuit is scanned monitoring, in time read in key information and clock and display circuit 8 temporal informations, and keep data communication to get in touch with first CPU in the host machine part, will be presented on clock display circuit and the status display unit as controlled electric appliance state, clock and button value for information about.

Clock and display circuit 8 are served as by clock chip S3530, and display circuit is selected LCD for use.

Status display unit drives array 2003 by many light-emitting diodes and drive circuit open collector thereof to be formed, and luminous tube is corresponding with controlled electric appliance.

Keyboard scanning circuit is formed the 4*6 matrix form, is respectively equipped with function key and numerical key.

Some integrated circuits in this remote centralized control switch are not unique, can also select for use ATM2051 or 89C51 to replace as CPU PIC16C4 single-chip microcomputer, and dtmf tone decoding integrated circuit frequently also can also be selected 8870 chips such as grade for use.

Operation principle: host machine part: when on the telephone network bell signal being arranged, ring detecting circuit 3 is input to detected bell signal in the first CPU PIC16C4-1 single-chip microcomputer by photoelectrical coupler, when ringing number reaches the number of times that sets in advance, DC load is connected in PIC16C4-1 single-chip microcomputer output control information makes the 1 simulation off-hook action of simulation circuit for answering unit connect speech channel, control speech processing module subsequently and play indication language indication operation, the dtmf tone of far-end phone input instructs frequently and is read in by the PIC16C4-1 single-chip microcomputer after decoding integrated circuit HT9170D is decoded into binary coding, and the PIC16C4-1 single-chip microcomputer carries out status poll according to the instruction of reading in to controlled electric appliance, reply or controlled electric appliance is carried out switch and revises operations such as password.

Control panel is partly: CPU PIC16C4-2 single-chip microcomputer is the actuation of keys of keyboard in the monitored instruction input unit 6 at any time.After monitoring the keyboard action, read in key assignments and storage, be simultaneously displayed on the LCDs, after receiving a complete instruction, be sent to main frame partly as data such as clock information, status poll instructions for information about by command content operation and general, receive the controlled electric appliance status information data that partly sends from main frame in addition, and this information is come out by the diode displaying in the status display unit 9.

Claims

1, a kind of remote centralized control switch, comprise CPU, simulation circuit for answering unit (1), DTMF decoding unit (2), ring detecting circuit (3), instruction input unit (6), Audio Processing Unit (4), condition indication circuit (9) and control output performance element (5):

It is online that ring detecting circuit (3) is connected public telephone, and the taking-up bell signal is also changed, and is sent to CPU;

Off-hook is simulated in simulation circuit for answering unit (1) under the control of CPU;

DTMF decoding unit (2) is decoded to the touch-tone signal on the telephone wire, and with decoded coded command signal input CPU;

Instruction input unit (6) is used for on-the-spot running parameter or the operational order of setting CPU;

The speech output end of Audio Processing Unit (4) is connected that public telephone is online, and control end is connected on the CPU, the speech signal that output is prerecorded under the control of CPU;

The control command of control output performance element (5) execution CPU switches on or off the working power operation of corresponding controlled electric appliance;

Condition indication circuit (9) receives from the controlled electric appliance state information of CPU input and with its real-time demonstration;

Described main frame partly mainly comprises first CPU, simulation circuit for answering unit (1), DTMF decoding unit (2), ring detecting circuit (3), Audio Processing Unit (4) and control output performance element (5), wherein control output performance element (5) is made of a plurality of contact electronic switches and drive circuit thereof, the control end of drive circuit is connected with the delivery outlet of first CPU, and the number of electronic switch can be provided with a plurality of as required;

Described control panel partly comprises second CPU, instruction input unit (6), condition indication circuit (9) and clock and display circuit (8):

Described instruction input unit (6) is made of keyboard scanning circuit, and the coding type instruction is inputed to CPU;

Described condition indication circuit (9) receives from the controlled electric appliance state information of CPU input and with its real-time demonstration;

Described clock and display circuit (8) are connected with the CPU data, are used to show real-time time and carry out the control information processing relevant with the time for CPU provides real time information for CPU;

Be provided with data telecommunication line (7) between first CPU of described main frame part and control panel second CPU partly.

2, remote centralized control switch according to claim 1 is characterized in that: described CPU is that core and peripheral cell thereof are formed with the single-chip microcomputer.

3, remote centralized control switch according to claim 2 is characterized in that: described single-chip microcomputer is PIC16C64.

4, remote centralized control switch according to claim 2 is characterized in that: described single-chip microcomputer is ATM2051.

5, remote centralized control switch according to claim 2 is characterized in that: described single-chip microcomputer is 89C51.