RU63576U1 - RADIO RECEIVER AND RADIO CHANNEL INFORMATION TRANSMISSION SYSTEM - Google Patents

Abstract

The utility model relates to radio-channel information transmission systems, namely, to systems for monitoring, monitoring and guarding objects. The essence of the utility model is a repeater receiver, comprising a receiver, a processor unit, a transmitter, characterized in that the processor unit contains a start code recognizer, a filter of transmitters and relay numbers, a determinant for transmitting or not transmitting information, a transmitter of its own repeater number, a repeater code summing device with a received message, a device for generating the number of retransmissions of a received message and ignoring identical messages received in within one minute, the level meter of the signal coming from the receiver, the adder of the relay signal with information about the level of the received message, DIP switches that allow you to change the software of the processor unit with the help of mechanical switches, the programmable determinant of priority information that must be transmitted primarily to the control panel, the processor unit is connected to the indicator unit or to a computer with a monitor. As well as a radio channel information transmission system containing sensors, transmitters, a control panel, which is characterized in that it contains a repeater receiver that receives signals to an omnidirectional antenna and transmits signals to a control panel via a wireless channel through a directional antenna or 1 + n relay receivers, moreover, each receiver-repeater can receive and transmit signals at one frequency or at different frequencies. Repeater receivers can be combined into a cellular radio channel system and operate in a serial circuit, or a parallel circuit, or a parallel-serial circuit. Digital filtering and signal processing allows you to have high noise immunity and long range system.

Description

The utility model relates to radio-channel information transmission systems, namely, to systems for monitoring, monitoring and guarding objects.

There are several radio channel notification transmission systems produced by the industry:

1. Radio channel information transmission system "Radius" - the city of Chelyabinsk. The disadvantages of this system include a low transmitter power - 2 W, a small numbering capacity - 1000, a small limit on the number of messages processed in one hour - up to 256.

2. Radio channel information transmission system "Andromeda" - the city of St. Petersburg. The disadvantages of this system are a small numbering capacity - from 150 to 2000 and a small limit on the number of messages processed in one hour - from 300 to 400.

3. Radio channel information transfer system LARS (KR Electronic) - Israel. The disadvantages of this system include a small numbering capacity - from 500 to 10,000 and an insufficient maximum number of messages processed in one hour - 1700-1800, with a very high cost of equipment and, accordingly, a poor ratio - functionality / price of equipment.

Also known is US patent No. 6.690.276 of February 10, 2004, containing "Method and device for monitoring confirmation messages in security systems."

1. Security system, including a transmitter, many receivers associated with the transmitter wirelessly, remote control

A control connected to receivers via a data channel can work in the following steps:

a: the first receiver from a plurality of receivers in the system that receives the signal from the transmitter converts it into a digital message and places this message in the output buffer memory

b: the first receiver controls the data transmitted to it from the control panel

c: the first receiver fixes if a confirmation message was sent over the data bus from the control panel, and the confirmation message contains information on whether the control panel successfully received messages from other receivers.

d: after decryption of the confirmation message, the first receiver determines whether the confirmation message contains data that the messages sent to the control panel by other receivers are identical to the message stored in the buffer device of the first receiver

e: if the control panel has already received a message identical to the message stored in the output buffer of the first receiver, the first receiver does not transmit to the control panel the message stored in the output buffer

f: if the control panel has not yet received a message from other receivers identical to the message stored in the output buffer of the first receiver, the first receiver transmits to the control panel a message stored in the output buffer

2. The method according to paragraph 1, which describes the steps for receiving messages by the control panel from the receiver via the data bus, and sending by the control panel via the data bus a confirmation message containing information about the messages successfully received by the control panel

3. Security system, including:

A: wireless transmitter

b: multiple receivers associated with the transmitter wirelessly.

c: a control panel connected to receivers via a data bus, wherein each receiver includes:

i: device for receiving a wireless signal from a wireless transmitter

ii: device for converting a wireless signal into a digital message

iii: an output buffer memory for storing a message awaiting transmission to the control panel

iv: device for controlling the transmitted data on the communication bus from the control panel

v: a device for detecting a confirmation message that sends the control panel via the data bus if the control panel has already successfully received messages from each of the many other receivers

vi: a device for determining whether a confirmation message contains information that the control panel has already successfully received a message from another receiver identical to the message stored in the buffer memory of the first receiver.

vii: a device for canceling the sending of a message stored in a buffer memory of a first receiver in case the control panel has already received an identical message from another receiver

viii: a device for sending a message stored in the buffer memory of the first receiver in case the control panel has not yet received an identical message from another receiver

4. In the security system described in paragraph 2, the control panel includes:

a device for receiving messages on a data bus from system receivers and a device for sending confirmation messages on a data bus containing information about messages successfully received by the control panel

5. A security system including a wireless transmitter, a plurality of wireless receivers connected to transmitters wirelessly, a control panel connected to receivers via a data bus, and a method for operating this system;

a: the first of the receivers, which received a wireless signal from the transmitter, converts this signal into a digital message and sends it to the control panel

b: the receiver, the second to receive the wireless signal from the transmitter, converts this signal into a digital message and places it in a buffer memory for subsequent sending to the control panel

c: the control panel receives a digital message from the first receiver

d: the control panel sends a confirmation message containing information that the message from the first receiver was successfully received.

e: the second receiver monitors the messages transmitted by the control panel via the data bus

f: the second receiver receives a confirmation message transmitted by the control panel over the data bus

g: the second receiver determines whether the confirmation message contains information that the control panel has already successfully received from another receiver a message identical to the message in the buffer memory of the second receiver.

h: if the confirmation message contains information that the control panel has already received a message identical to the message stored in the buffer device of the second receiver, the second receiver does not transmit the message stored in the buffer device to the control panel

i: if the confirmation message contains information that the control panel has not yet received a message identical to the message stored in the buffer device of the second receiver, the second receiver transmits the message stored in the buffer device to the control panel.

This security system is taken as a prototype. The disadvantages of this known security system include the low power of the transmitter, which leads to the need to use multiple receivers (which increases the cost of the system) connected to the bus control panel

data, as well as a small area covered by the security system, corresponding to one, two protected objects (buildings).

The problem to which the claimed utility model is directed is to create a radio channel information transmission system containing sensors, transmitters, relay receivers, a control panel with a large, tens of thousands, numbering capacity, with a high transmission speed of messages, with a large number of messages, worked out in one hour, which could cover a large territory, reliably working even with security facilities remote up to 150 km away, while monitoring and controlling the entire system from one control panel, as well as low cost of equipment and high ratio - functionality / price of equipment.

The technical result is achieved with the use of intelligent digital receivers-repeaters, each of which contains a processor unit, combined into a cellular radio channel information transmission system. Digital filtering and signal processing allows you to have high noise immunity and long range system. The processor unit software allows filtering, displaying, archiving received notifications, maintaining a database of objects, monitoring the passage of test signals, selecting frequencies for receiving and transmitting information, message relay modes by configuration and algorithm, to increase system throughput, to prevent repetitions and excessive overload of the radio channel.

The essence of the utility model is a repeater receiver, comprising a receiver, a processor unit, a transmitter, characterized in that the processor unit contains a start code recognizer, a filter of transmitters and relay numbers, a determinant for transmitting or not transmitting information, a shaper of a repeater own number, a repeater code summing device with a received message, a device for generating the number of retries of transmission of a received message and ignoring identical messages received in

within one minute, the level meter of the signal coming from the receiver, the adder of the relay signal with information about the level of the received message, DIP switches that allow you to change the software of the processor unit with the help of mechanical switches, the programmable determinant of priority information that must be transmitted primarily to the control panel, the processor unit is connected to the indicator unit or to a computer with a monitor. As well as a radio channel information transmission system containing sensors, transmitters, a control panel, which is characterized in that it contains a relay receiver that receives signals to an omnidirectional antenna and relays signals to the control panel wirelessly through a directional antenna or 1 + n relay receivers ( where n is one or more relay receivers), and each relay relay can receive and transmit signals at one frequency or at different frequencies. Repeater receivers can operate in a serial circuit, or a parallel circuit, or a parallel-serial circuit.

The operation of the repeater receiver to receive signals to an omnidirectional antenna allows the repeater receiver to receive signals from both object transmitters and other relay receivers. Relaying signals through a directional antenna increases the signal transmission range, correspondingly reducing the number of transceiver receivers and reducing the clogging of the operating frequency range, increasing the stability and clarity of the operation of other transceiver receivers of the radio channel information transmission system. Separation of the receiving and transmitting paths allows you to not transmit or receive signals on the receiving path during transmission and switching, and also increases the speed of information transfer.

The drawings show:

figure 1 - receiver-relay,

figure 2 - diagram of the receivers-repeaters operating in a sequential circuit,

figure 3 - diagram of the receivers-repeaters operating in a parallel circuit,

figure 4 - diagram of the receivers-repeaters operating in parallel-serial circuit.

The receiver-relay device of FIG. 1 includes: a receiver 1, a processor unit 2, which contains a start code recognizer 3, a filter of 4 numbers of transmitters and repeaters, a determinant for transmitting or not transmitting information, a shaper of own number 6, a code summing device 7 a repeater with a received message, a device 8 for generating the number of retries of transmission of a received message and ignoring identical messages received within one minute, a level meter 9 of the signal from receiver 1, adder 10 of the relay signal with information about the level of the received message, as well as the transmitter 11 and the computer 12.

The receiver-relay circuit of FIG. 2, operating in a sequential manner, includes: sensors 13-21, transmitters 22-24, receiver-relay 25, receiver-relay 26, remote control 27.

The receiver-relay circuit of FIG. 3, operating in a parallel circuit, includes: sensors 13-21, transmitters 22-24, receiver-relay 25, remote control 27, sensors 28-36, sensors 37-45, transmitters 46-48, transmitters 49-51, receiver-relay 52, receiver-relay 53.

The receiver-relay circuit of Fig. 4, operating in parallel-serial circuit, includes: sensors 13-21, transmitters 22-24, receiver-relay 25, receiver-relay 26, control panel 27, sensors 28-36, sensors 37- 45, transmitters 46-48, transmitters 49-51, receiver-relay 52, receiver-relay 53.

The receiver-relay in figure 1 works as follows. The receiver 1 receives messages sent by the transmitter from the protected object, demodulates the signal and transfers it to the signal level meter 9 and in parallel to the recognizer 3, which filters the signal by the start code of the system and transfers it to filter 4 for filtering

9 signals by number group. Next, the signal enters the determinant 5 of the transmission or absence of information transmission and through the shaper 6 of the receiver-relay’s own number, the signal is summed with the code of the receiver-relay in the device 7, after which it enters the device 8, in which the number of retransmissions of the received message is generated and ignored identical messages received within one minute. That is, the receiver-relay in automatic mode determines the need for information and the amount of its transmission through the transmitter 11 so as not to overload the ether and the control panel 27. At the same time, the device 8 transmits a signal to the adder 10 of the relay signal with the signal level coming from the meter 9. K the output of adder 10 RS-232 can connect a computer 12, which allows using software to control the reception of messages from protected objects with indication of signal levels, which is very important when choosing a place for location of transmitters and collection of statistics of signal transmission.

If the guarded object is located at a large distance from the control panel 27, a sequential scheme of operation of the relay receivers is applied - Figure 2, in which up to nine relay receivers can be connected in series (carried out in practice). From sensors 13-21 located at the guarded object, information is transmitted to transmitters 22-24, which transmit it to the receiver-relay 25, which transmits information through the receiver-relay 26 to the control panel 27.

With an extensive network and a large number of protected objects, a parallel arrangement of the receivers-repeaters is used - Figure 3. From sensors 13-21, 28-36, 37-45, information is transmitted to the corresponding transmitters 22-24, 46-48, 49-51, which transmit information to their respective relay receivers 25, 52, 53, relaying messages to the console 27 controls.

With an extensive network and a large number of protected objects located at a considerable distance from the control panel 27,

applies a parallel-serial arrangement of receivers-repeaters - Figure 4. From sensors 13-21, 28-36, 37-45, information is transmitted to the respective transmitters 22-24, 46-48, 49-51, which transmit information to their respective relay receivers 25, 52, 53, relaying messages to the receiver a relay 26 transmitting messages to the control panel 27. Up to nine transponder receivers can be in a serial circuit.

Thus, based on the receivers-repeaters, a multi-format radio channel, in the range 136-174 MHz, Delta information transmission system with the number of guarded objects up to 12000, number capacity up to 32000 and processing up to 2000 messages per hour has been created and applied in practice. If without receivers-relays, the equipment used provides a range of up to 15 km, then with receivers-relays up to 150 km, and each receiver-relay can receive information on an omnidirectional antenna, as soon as from transmitters - radial mode, and from transmitters and with other receivers-repeaters - combined mode, analyze, process information, prioritize transmitted messages with three or more repetition of messages through a directional antenna to increase transmission range, to ensure reception, with random intervals between messages, to prevent coincidence of signals in time, to control the level of the received signal, to monitor the status of the main and backup power supply, having 256 informative code options (setting, removal, alarm, penetration, fire, gas leak, water leak, etc.). Repeater receivers can also select the operating mode: simplex - receiving and transmitting at one frequency and half-duplex - receiving and transmitting at different frequencies, to increase the system throughput, to prevent unnecessary repetitions and unnecessary overload of the radio channel. Application of a special protocol with 51-bit noise immunity

redundant code with error correction, guarantees only the correct reception of information, excluding the receipt of false messages.

When using the Delta 1.7 software shell of the workstation software and a personal computer, the repeater-receiver can be used as a base station, and if several relay-receivers are located in the region, as a repeater base station. This makes it possible to build a system from a small control panel with several subscribers to a network that includes a large number of relay receivers.

Claims (14)

1. The receiver-relay, comprising a receiver, processor unit, transmitter, characterized in that the processor unit contains a start code recognizer, a filter of transmitters and relay numbers, a determinant for transmitting or not transmitting information, a transmitter of its own repeater number, a repeater code summing device with a received message , a device for generating the number of retries of transmission of a received message and ignoring identical messages received within one minute. 2. The repeater receiver according to claim 1, characterized in that the processor unit comprises a level meter for the signal from the receiver. 3. The receiver-relay according to claim 1, characterized in that the processor unit contains an adder of the relay signal with information about the level of the received message. 4. The relay receiver according to claim 1, characterized in that the processor unit contains DIP switches, which allow using mechanical switches to change the software of the processor unit. 5. The receiver-relay according to claim 1, characterized in that it contains a computer with a monitor. 6. The receiver-relay according to claim 1, characterized in that it contains an indicator unit. 7. The repeater receiver according to claim 1, characterized in that the processor unit contains a programmable determinant of priority information that must be transmitted primarily to the control panel. 8. A radio channel information transmission system comprising sensors, transmitters, a control panel, characterized in that it comprises a relay receiver receiving signals to an omnidirectional antenna and relaying signals to the control panel wirelessly through a directional antenna. 9. The radio channel information transmission system of claim 8, characterized in that it contains 1 + n relay receivers. 10. The radio channel information transmission system according to claim 9, characterized in that the relay receivers operate in a sequential manner. 11. The radio channel information transmission system according to claim 9, characterized in that the relay receivers operate in parallel. 12. The radio channel information transmission system according to claim 8, characterized in that the relay receivers operate in parallel-serial circuit. 13. The radio channel information transmission system of claim 8, wherein the repeater receiver receives and transmits signals at a single frequency. 14. The radio channel information transmission system of claim 8, wherein the repeater receiver receives and transmits signals at different frequencies.