Summary of the invention
The present invention is directed to weak point like emergency alarm emergency series products; A kind of distress call device is provided, runs into emergency condition, press the button of crying for help on the wireless radio frequency remote control device when calling for help the people; The rf wave of wireless radio frequency remote control device emission certain frequency; Excite the distress call dispensing device that connects telephone line, call automatically, the distress signals information of sending to is sent to Center For Information Management.
According to technical scheme provided by the invention; Described distress call device comprises wireless radio frequency remote control device and distress call transmitter; Said wireless radio frequency remote control device comprises: single-chip microcomputer, radio-frequency transmissions antenna, an EEPROM program storage, emergency button and the button cell of the first band RF RF transmit-receive circuit, and the single-chip microcomputer of the said first band RF RF transmit-receive circuit connects radio-frequency transmissions antenna, an EEPROM program storage, emergency button and button cell respectively; Said distress call transmitter comprises: the single-chip microcomputer of speech chip, dual-tone multifrequency transmission and receiver, the 2nd EEPROM program storage, the second band RF RF transmit-receive circuit; Said speech chip is connected with telephone wire with receiver with the dual-tone multifrequency transmission; Speech chip, dual-tone multifrequency transmission and receiver, the 2nd EEPROM program storage are connected with the single-chip microcomputer of the second band RF RF transmit-receive circuit, and the single-chip microcomputer of the second band RF RF transmit-receive circuit connects the radio frequency receiving antenna; When the emergency button was pressed, the single-chip microcomputer of the first band RF RF transmit-receive circuit detected the transmission signal through input end, sends electromagnetic wave through alignment space, radio-frequency transmissions sky at once; Said distress call transmitter is placed within doors, is attempted by on the telephone line, and the distress call transmitter receives the electromagnetic wave that the wireless radio frequency remote control device sends; Judge whether it is distress signal, if distress signal, the single-chip microcomputer of the second band RF RF transmit-receive circuit is sent by I/O interface notice dual-tone multifrequency and receiver is dialed the setting telephone number; Single-chip processor i/o port by the second band RF RF transmit-receive circuit receives the signal tone that transmits on the telephone line then, distinguishes the duty that the other side's telephone set is present, if busy tone then repeats placement process; If ringback tone; Wait for that then ringback tone stops, if off-hook sound, the single-chip microcomputer of the second band RF RF transmit-receive circuit sends high level through the I/O port; Trigger the speech chip sounding, output comprises the voice content of address, name and the required rescue information of the resident family of crying for help.
The single-chip microcomputer of the single-chip microcomputer of the said first band RF RF transmit-receive circuit and the second band RF RF transmit-receive circuit adopts wireless singlechip NRF9E5, and 32 pin of the single-chip microcomputer of the first band RF RF transmit-receive circuit connect high level, and through emergency button ground connection.
Said dual-tone multifrequency is sent and receiver adopts chip MT8880; 8 pin of MT8880 are connected telephone wire through the 3rd resistance with the 3rd electric capacity successively; 2 pin of MT8880 are connected telephone wire through the 4th resistance with the 4th electric capacity; Corresponding respectively 32 pin, 1 pin, 2 pin, 3 pin, 7 pin, 8 pin, 9 pin that connect the single-chip microcomputer NRF9E5 of the second band RF RF transmit-receive circuit of 14 pin of MT8880,15 pin, 16 pin, 17 pin, 13 pin, 9 pin, 11 pin; 13 pin of the single-chip microcomputer NRF9E5 of the second band RF RF transmit-receive circuit connect two input ends of Sheffer stroke gate, and 10 pin of MT8880 connect the output terminal of Sheffer stroke gate; Sheffer stroke gate plays the effect of switching levels; MT8880 receives the telephone number of dialing from the single-chip microcomputer of the second band RF RF transmit-receive circuit; Be transformed to touch-tone signal,, send to the dialing tone signal on the telephone line through receiving the 3rd resistance and the series circuit of the 3rd electric capacity on the telephone line; MT8880 converts the call treatment pattern into then; From being connected to the 4th resistance and the series circuit of the 4th electric capacity on the telephone line, be transformed to square wave output receiving signal tone, supply the single-chip microcomputer of the second band RF RF transmit-receive circuit to detect.
Advantage of the present invention is: wireless radio frequency remote control device of the present invention can be made into small-sized suspension member, and for the elderly, particularly the man at an advanced age of single inhabitation carries especially easily; In addition, according to the dwelling house size, arrange one to several distress call dispensing devices.When running into emergency condition; In the time of need seeking other people and help; Can press the button of crying for help on the wireless radio frequency remote control device, launch the rf wave of certain frequency, excite the distress call dispensing device that connects telephone line; Predefined distress signals are sent to the cell management center, let its person of sending someone to sue and labour in to the home.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Described distress call device is made up of wireless radio frequency remote control device and two parts of distress call transmitter.Adopt wireless radio frequency remote control device control distress call transmitter, use telephone wire and send distress call information through the mode of making a phone call.
Less radio-frequency is sent the small-sized suspension member that telepilot and the big door key of dwelling house are made into one,, can carry easily as the apperance of the automobile remote-control key of current fashion.When needs are cried for help; The litigant presses the emergency button on the wireless radio frequency remote control device; The incorporate integrated chip of RF RF transmit-receive circuit and single-chip microcomputer detects the transmission signal through input end, at once through the emitting antenna coil, sends the radio magnetic wave of certain frequency to the space.
As shown in Figure 1; The particular circuit configurations of said wireless radio frequency remote control device comprises: single-chip microcomputer N1, radio-frequency transmissions antenna, an EEPROM program storage N2, emergency button S1 and the button cell E1 of the first band RF RF transmit-receive circuit, the single-chip microcomputer N1 of the said first band RF RF transmit-receive circuit connects radio-frequency transmissions antenna, an EEPROM program storage N2, emergency button S1 and button cell E1 respectively.The one EEPROM program storage N2 adopts wireless singlechip NRF9E5, and its 32 pin connects high level, and through emergency button S1 ground connection.
Resistance R 1 ' is formed the button trigger circuit with emergency button S1 among Fig. 1, and capacitor C 5 ', C6 ', C7 ' and C8 ' form the radio-frequency transmissions antenna with coil; Capacitor C 1 ', C2 ', resistance R 4 ' and crystal oscillator X1 constitute the outside built-up circuit of the oscillatory circuit of wireless singlechip together; Wireless singlechip N1 model is NRF9E5, and its kernel is high-performance enhancement mode 51 single-chip microcomputers, constitutes wireless singlechip with the RF transmission circuit.
The one EEPROM program storage N2 model is 25C320, deposits the working routine of wireless radio frequency remote control device.When powering on, working routine under the guiding of the boot section of the single-chip microcomputer N1 of the first band RF RF transmit-receive circuit, in an EEPROM program storage N2 is loaded into the single-chip microcomputer N1 of the first band RF RF transmit-receive circuit the RAM after, automatically perform program work.When pressing emergency button S1, the single-chip microcomputer N1 judgement of the first band RF RF transmit-receive circuit needs to send distress signal, sends the electromagnetic wave of certain frequency to the space through radio-frequency antenna at once.
As shown in Figure 2; The physical circuit of said distress call transmitter comprises: the single-chip microcomputer N5 of speech chip N21, Dual Tone Multifrequency transmission and receiver N22, the 2nd EEPROM program storage N4, the second band RF RF transmit-receive circuit; Said speech chip N21 sends with dual-tone multifrequency and is connected with telephone wire with receiver N22; Speech chip N21, dual-tone multifrequency are sent with receiver N22, the 2nd EEPROM program storage N4 and are connected with the single-chip microcomputer N5 of the second band RF RF transmit-receive circuit, and the single-chip microcomputer N5 of the second band RF RF transmit-receive circuit connects the radio frequency receiving antenna.
Said dual-tone multifrequency is sent and receiver N22 adopts chip MT8880; 8 pin of MT8880 are connected telephone wire through the 3rd resistance R 3 with the 3rd capacitor C 3 successively; 2 pin of MT8880 are connected telephone wire through the 4th resistance R 4 with the 4th capacitor C 4; Corresponding respectively 32 pin, 1 pin, 2 pin, 3 pin, 7 pin, 8 pin, 9 pin that connect the single-chip microcomputer N5NRF9E5 of the second band RF RF transmit-receive circuit of 14 pin of MT8880,15 pin, 16 pin, 17 pin, 13 pin, 9 pin, 11 pin; 13 pin of the single-chip microcomputer N5NRF9E5 of the second band RF RF transmit-receive circuit connect two input ends of Sheffer stroke gate N3, and 10 pin of MT8880 connect the output terminal of Sheffer stroke gate N3; Sheffer stroke gate N3 plays the effect of switching levels; MT8880 receives the telephone number of dialing from the single-chip microcomputer N5 of the second band RF RF transmit-receive circuit; Be transformed to touch-tone signal,, send to the dialing tone signal on the telephone line through receiving the 3rd resistance R 3 and the series circuit of the 3rd capacitor C 3 on the telephone line; MT8880 converts the call treatment pattern into then; From being connected to the 4th resistance R 4 and the series circuit of the 4th capacitor C 4 on the telephone line, be transformed to square wave output receiving signal tone, supply the single-chip microcomputer N5 of the second band RF RF transmit-receive circuit to detect.
Because energy consumption is low, the power supply of distress call transmitter is directly adopted by the mode of obtaining energy on the telephone line.Through after the resistance drop low-voltage, receive+the 5V stabilivolt on, for DTMF sends with receiver N22, speech chip N21 and the 2nd EEPROM storage chip N4 power supply is provided; Simultaneously, be that the 2nd EEPROM program storage N4 provides+WV of 3.3V through the secondary voltage stabilizing more thus.Circuit power VDD1, the VDD2 of resistance R 1, R2, stabilivolt D1, D2 and capacitor C 1, C2 composition+5V and 3.3V among Fig. 2.
Capacitor C 12, C13, C14 and C15 and coil are formed the radio frequency receiving antenna among Fig. 2.
The single-chip microcomputer N5 of the second band RF RF transmit-receive circuit is a wireless singlechip, and model is NRF9E5.Capacitor C 8, C9, resistance R 12 and crystal oscillator X2 constitute the outside element of the oscillatory circuit of wireless singlechip together.
The 2nd EEPROM program storage N4 model is 25C320, deposits the working routine of distress call transmitter.When powering on, working routine under the guiding of the boot section of the single-chip microcomputer N5 of the second band RF RF transmit-receive circuit, in EEPROM is loaded into the single-chip microcomputer N5 of the second band RF RF transmit-receive circuit the RAM after, automatically perform program work.
Dual Tone Multifrequency sends and receiver N22 model is MT8880.Crystal oscillator X1 is the outer member of the vibrating circuit of DTMF transmission and receiver N22.The telephone number that DTMF sends and receiver N22 dials from the single-chip microcomputer N5 reception of the second band RF RF transmit-receive circuit; Be transformed to touch-tone signal; Through receiving resistance R 3 and the series circuit of capacitor C 3 on the telephone line, send to the dialing tone signal on the telephone line.Then; DTMF sends and receiver N22 converts calling (CALL) tupe into; From being connected to resistance R 4 and the series circuit of capacitor C 4 on the telephone line, be transformed to square wave output receiving signal tone, supply the single-chip microcomputer N5 detection of the second band RF RF transmit-receive circuit.
Speech chip N21 has the SOS content of prerecording; When receiving the high level that transmits through resistance R 9 (from 10 pin of the single-chip microcomputer N5 of the second band RF RF transmit-receive circuit); Just, send to voice signal on the telephone line through receiving resistance R 5 and the series circuit of capacitor C 5 on the telephone line.
The course of work of distress call transmitter is following: the distress call transmitter is placed within doors, and is connected on the telephone line.The distress call transmitter receives less radio-frequency and sends the electromagnetic wave that telepilot sends, and judges whether it is distress signal, if seek advice signal, single-chip microcomputer is sent and receiver by I/O interface notice DTMF, dials its telephone number to the management of residential district center.Then, convert the DTMF transmission to the CALL mode of operation with receiver, receive the signal tone (ringback tone, busy tone and off-hook sound etc.) that transmits on the telephone line, distinguish the duty that the other side's telephone set is present by the single-chip processor i/o port.If busy tone so, pauses a period of time, continue to dial the other side's telephone number, receive signal tone again and carry out the state judgement; If ringback tone; The wait ringback tone stops, and when off-hook sound occurring, single-chip microcomputer has the I/O port to send high level; Trigger the speech utterance chip; Output comprises address, the name of the resident family of crying for help and needs the voice content of urgent rescue information, tells managerial personnel to come the resident family place to open the door with the key of depositing this place, gives first aid to.
Wireless radio frequency remote control device of the present invention constitutes the carry-on small-sized suspension member that can be convenient for carrying with resident family's door key.Do not leave because resident family's door key is general carry-on, therefore, the wireless radio frequency remote control device is also carried always.
The present invention utilizes DTMF to send with receiver and dials management of residential district center phone, judges that whether the other side connects; Utilize speech chip to send the distress signals content of depositing in advance; The distress call transmitter is connected on the telephone line that almost every household all has.After being excited, call from trend management of residential district center, and send distress call information by the wireless radio frequency remote control device.