CN2249999Y

CN2249999Y - Wire/wireless switching controller for group dispatching system

Info

Publication number: CN2249999Y
Application number: CN 95240685
Authority: CN
Inventors: 何坚
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-10-18
Filing date: 1995-10-18
Publication date: 1997-03-19
Anticipated expiration: 2005-10-18

Abstract

The utility model discloses a wired /wireless switching controller for a group dispatching system, which is composed of a microcontroller 2, an address switch 1, a driver 3, a relay 4, a power supply convertor 5, etc., wherein, the microcontroller 2 is used for detecting a ringing signal, the address switch 1 is used for adjusting the width of the output signal of the microcontroller 2, and the driver 3 drives the relay 4 to output a short circuit handshaking signal for a group exchanger. When a power supply is switched on, the power supply convertor 5 provides the working voltage for the circuits of the utility model. When the utility model is used, the availability ratio of the original group dispatching system can be improved. The utility model has the advantages of simple structure and easy manufacture.

Description

The wired 1 wireless converting controller of Trunked Radio System

The present invention relates to electrical communication technology, relate in particular to the telephone connection control circuit.

The 800MHZ of Motoroloa company Trunked Radio System Smartnet I, for realize and public switched network between interconnection, the multi-functional speech coupler 1692-31L2 that has adopted Pulsecom company to produce, this equipment is as the equipment that continues of subscriber exchange and public switched network, provide conversation to set up and the modern controlled function of the letter of taking out stitches, but, call out in wireless user's the process at wire user, each ring, this coupler send 1 second ring to detect pulse, after needing to wait for 3 rings, connect the cluster switching system just now, thereby must wait for more than 15 seconds, cause to wire user and use inconvenience, reduced the utilization rate of whole system.

Because the speech coupler that Pulsecom company produces adopts analog circuit, it is non-adjustable that ring detects the pulse pulsewidth, thereby the purpose of this utility model is original system not to be done under the situation of any change, link to each other with coupler with a pair of power line by two pairs of holding wires, the connecting time of system is reduced in 3 seconds-5 seconds, shortens the stand-by period of wire user greatly.

Concrete scheme of the present utility model is: the wired 1 wireless converting controller of a kind of Trunked Radio System, form by microcontroller, address switch, driver, relay, supply convertor etc., microcontroller 2 is MCS-51 Series of MCU, driver 3 is 7407 or 7406 digital logic block, supply convertor 5 is DC power convertor of isolated form 24V to 5V, and the pin 1,2 of described microcontroller 2 is connecting resistance R respectively ₈, R ₉An end, R ₈, R ₉The other end connect J, K point respectively, the pin 3-6 of microcontroller 2, respectively connecting resistance R ₅, R ₄, R ₃, R ₂An end, R ₂-R ₅The other end connect the F point simultaneously, the pin 7 connecting resistance R of microcontroller 2 ₇An end, R ₇Another termination H point, meet signal input part U simultaneously after the pin 8 of

microcontroller

2 and 12 short circuits ₁And resistance R ₆An end, R ₆Another termination G point, signal input part U ₂Ground connection, the pin 9 of microcontroller 2 meets electrochemical capacitor u simultaneously ₁Negative pole and R ₁An end, u ₁Positive pole meets E point, R ₁Other end ground connection, 18,19 of the pins of microcontroller 2 also meet crystal J ₁, capacitor C ₁, C ₂One end meets microcontroller pin 18,19, C respectively ₁, C ₂The other end is ground connection respectively, microcontroller 2 pins 20 ground connection, and microcontroller 2

pins

31,40 connect 1 point simultaneously; The pin 1-4 of described address switch 1 is ground connection simultaneously, and the pin 5-8 of address switch 1 connects the

6,5,4,3 of microcontroller 2 respectively; The pin 1,3 of described driver 3 connects 1,2 pins of microcontroller 2 respectively, and the pin 2 of driver 3 meets R ₁₀An end, R ₁₀Other end sending and receiving optical diode LD ₁Negative electrode, LD ₁Anode connects the M point, and the pin 4 of driver 3 is succeeded the pin 3 of electrical equipment 4, and the pin 7,14 of driver 3 is ground connection and L point respectively; The

2,5,8 of described relay 4 meets N, U respectively ₃, U ₄Point, U ₃, U ₄Be signal output part; Described supply convertor 5 positive and negative input pins meet U respectively ₅, U ₆, U ₅, U ₆Be power input, supply convertor 5 positive and negative output pins connect D point and ground vapour respectively, between supply convertor 5 positive and negative output pins and meet voltage stabilizing didoe CR ₁, electrochemical capacitor u ₂, resistance R ₁₁With light-emitting diode LD ₂, CR ₁Plus earth, CR ₁Negative electrode meets D point, u ₂Minus earth, u ₂Positive pole meets D point, R ₁₁Termination D point, R ₁₁The other end and LD ₂Anode connects, LD ₂Minus earth, the D point is connected simultaneously with E, F, G, H, I, J, K, L, M, N point.

The present invention does not do any change to the circuit of original system, need not to increase additional power supply equipment, the stand-by period that makes the user dial cluster telephone reduced to 3 seconds-5 seconds, simultaneously with low cost, adopt general integrated stamen sheet, for the 800MHZ Trunked Radio System, usually are furnished with 10 repeat circuits, if average every circuit stand-by period shortens 10 seconds, every trunk line on average has 200 wired incoming calls every day, then the utilization of every repeat circuit is filled and can be improved 33 minutes, and 30 wired incoming calls can be provided again, has effectively improved utilance.

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is a Trunked Radio System wire/wireless switching controller circuit diagram;

Fig. 2 is a Trunked Radio System wire/wireless switching controller electrical principle block diagram;

Trunked Radio System wire/wireless switching controller circuit diagram shown in Figure 1, be made up of address switch 1, microcontroller 2 (8751 microcontroller), driver 3 (piece is collected on 7407 digital limits), relay 4 (the PVA type of International Rectifler company), supply convertor 5 (DC power convertor of isolated form 24V to 5V) etc., the pin 1,2 of microcontroller 2 is connecting resistance R respectively ₈(10K), R ₉An end (10K), R ₈, R ₉The other end connect J, K point respectively, the pin 3-6 of microcontroller 2, respectively connecting resistance R ₅(10K), R ₄(10K), R ₃(10K), R ₂An end (10K), R ₂-R ₅The other end connect the F point simultaneously, the pin 7 connecting resistance R of microcontroller 2 ₇An end (10K), R ₇Another termination H point, meet signal input part U simultaneously after the pin 8 of

microcontroller

2 and 12 short circuits ₁And resistance R ₆An end (10K), R ₆Another termination G point, signal input part U ₂Ground connection, the pin 9 of microcontroller 2 meets electrochemical capacitor u simultaneously ₁(10 μ) negative pole and R ₁An end (10K), u ₁Positive pole meets E point, R ₁Other end ground connection, 18,19 of the pins of microcontroller 2 also meet crystal J ₁(4MHZ), capacitor C ₁(30P), C ₂(30P) end meets microcontroller pin 18,19, C respectively ₁, C ₃The other end is ground connection respectively, microcontroller 2 pins 20 ground connection, and microcontroller 2

pins

6,5,4,3 of microcontroller 2 respectively; The pin 1,3 of described driver 3 connects 1,2 pins of microcontroller 2 respectively, and the pin 2 of driver 3 meets R ₁₀One end of (470 Ω), R ₁₀Other end sending and receiving optical diode LD ₁Negative electrode, LD ₁Anode connects the M point, and the pin 4 of driver 3 is succeeded the pin 3 of electrical equipment 4, and the pin 7,14 of driver 3 is ground connection and L point respectively; The

2,5,8 of described relay 4 meets N, U respectively ₃, U ₄Point, U ₃, U ₄Be signal output part; Described supply convertor 5 positive and negative input pins meet U respectively ₅, U ₆, U ₅, U ₆Be power input, supply convertor 5 positive and negative output pins connect D point and ground vapour respectively, between supply convertor 5 positive and negative output pins and meet voltage stabilizing didoe CR ₁(5.6V), electrochemical capacitor u ₂(47 μ), resistance R ₁₁(470 Ω) and light-emitting diode LD ₂, CR ₁Plus earth, CR ₁Negative electrode meets D point, u ₂Minus earth, u ₂Positive pole meets D point, R ₁₁-termination D point, R ₁₁The other end and LD ₂Anode connects, LD ₂Minus earth, the D point is connected simultaneously with E, F, G, H, I, J, K, L, M, N point.When telephone coupler-24 power supply by V ₅, V ₆During input supply convertor 5, the positive and negative output pin of supply convertor institute connecting circuit plays pressure stabilization function, makes+5 volts of direct current of voltage regulation of supply convertor positive output end output, and is normal as this circuit working, light-emitting diode LD ₂Shinny, when+5 volts of voltages of supply convertor output, detect by U ₁, U ₂The bell signal of end input, microcontroller 2 enters the interruption time status, after timing time arrives, the level of 2 pairs of I/O ports of microcontroller is sampled, whether stable to differentiate bell signal, if because circuit disturbs the instantaneous short-circuit that causes, then microcontroller 2 returns wait state, any signal of not bothering to see me out out, when bell signal was stablized, microcontroller 2 was sent a control signal, drove relay 4 by driver 3 and sent the short circuit handshake to clustering switch, the deration of signal is by address switch 1 control (adjustable between the 1.25-3.65S), and LD is indicated in ring this moment ₁Shinny, 9 connecting circuits of the pin of microcontroller 2 play the electrification reset effect, microcontroller 2 draw angle 18,19 connect crystal oscillating circuit, provide microcontroller 2 required operating frequencies, 4 on relay stops the interference effect of load switch to this circuit.

This circuit microcontroller also can adopt other model in the MCS-51 Series of MCU, also available 7406 digital logic block of driver 3.

Trunked Radio System wire/wireless switching controller electrical principle block diagram shown in Figure 2, when supply convertor 5 power supplys when B imports, supply convertor 5 provides this circuit voltage, the bell signal that microcontroller 2 detects by the A input, when detecting bell signal, it is carried out repeated sampling, after confirming that bell signal is stable, microcontroller 2 is sent a control signal, drive relay 4 by driver 3 and send the short circuit handshake by the clustering switch of C, the deration of signal is by address switch 1 control.

Claims

1, a kind of Trunked Radio System wire/wireless switching controller, form by microcontroller, address switch, driver, relay, supply convertor etc., it is characterized in that: microcontroller 2 is MCS-51 Series of MCU, driver 3 is 7407 or 7406 digital logic block, supply convertor 5 is DC power convertor of isolated form 24V to 5V, and the pin 1,2 of described microcontroller 2 is connecting resistance R respectively ₈, R ₉An end, R ₈, R ₉The other end connect J, K point respectively, the pin 3-6 of microcontroller 2, respectively connecting resistance R ₅, R ₄, R ₃, R ₂An end, R ₂-R ₅The other end connect the F point simultaneously, the pin 7 connecting resistance R of microcontroller 2 ₇An end, R ₇Another termination H point, meet signal input part U simultaneously after the pin 8 of microcontroller 2 and 12 short circuits ₁And resistance R ₆An end, R ₆Another termination G point, signal input part U ₂Ground connection, the pin 9 of microcontroller 2 meets electrochemical capacitor u simultaneously ₁Negative pole and R ₁An end, u ₁Positive pole meets E point, R ₁18,19 of the pins of other end ground connection, microcontroller 2 also meet crystal J ₁, capacitor C ₁, C ₂One end meets microcontroller pin 18,19, C respectively ₁, C ₂The other end is ground connection respectively, microcontroller 2 pins 20 ground connection, and microcontroller 2 pins 31,40 connect 1 point simultaneously; The pin 1-4 of described address switch 1 is ground connection simultaneously, and the pin 5-8 of address switch 1 connects the pin 6,5,4,3 of microcontroller 2 respectively; The pin 1,3 of described driver 3 connects 1,2 pins of microcontroller 2 respectively, and the pin 2 of driver 3 meets R ₁₀An end, R ₁₀Other end sending and receiving optical diode LD ₁Negative electrode, LD ₁Anode connects the M point, and the pin 4 of driver 3 is succeeded the pin 3 of electrical equipment 4, and the pin 7,14 of driver 3 is ground connection and L point respectively; The pin 2,5,8 of described relay 4 meets N, U respectively ₃, U ₄Point, U ₃, U ₄Be signal output part; Described supply convertor 5 positive and negative input pins meet U respectively ₅, U ₆, U ₅, U ₆Be power input, supply convertor 5 positive and negative output pins connect D point and ground vapour respectively, between supply convertor 5 positive and negative output pins and meet voltage stabilizing didoe CR ₁, electrochemical capacitor u ₂, resistance R ₁₁With light-emitting diode LD ₂, CR ₁Plus earth, CR ₁Negative electrode meets D point, u ₂Minus earth, u ₂Positive pole meets D point, R ₁₁Termination D point, R ₁₁The other end and LD ₂Anode connects, LD ₂Minus earth, the D point is connected simultaneously with E, F, G, H, I, J, K, L, M, N point.