JP2603024Y2 - Patrol communication device in the building - Google Patents

Description

[Detailed description of the invention]

[0001]

[Industrial application field] The present invention provides an emergency contact instruction such as a work instruction or a business contact to a patrol person such as a building maintenance staff who patrols a high-rise building such as a building or an outdoor facility attached to this building. The present invention relates to an in-building patroller communication device.

[0002]

2. Description of the Related Art In a building such as a building, an air conditioner and a power supply device are arranged, and these devices and a monitoring device for monitoring the devices are usually installed in a basement room.
On the other hand, since the accessories of the above-mentioned devices are arranged on each floor of the building, maintenance personnel of these devices have to visit not only the basement but also each floor of the building.

[0003] When there are outdoor facilities such as an outdoor parking lot and an oil tank filling station attached to a building such as a building,
You have to go around this outdoor facility. If an abnormality or the like occurs in the device or facility during these patrols, it is necessary to immediately return to the monitoring device in the basement or perform the instructed operation. The following methods were used as these communication means.

(1) A method in which a maintenance person always carries a small receiver and, when receiving an alarm, uses a pager to contact the called party by the nearest telephone.

[0005] (2) A simple wireless method for business use in which communication is made wirelessly with each other by a transient bar or the like.

(3) A method using a specific low-power radio.

(4) A method using guided radio.

(5) MCA (multi-channel access)
Wireless method.

[0009]

The above-mentioned methods have the following problems.

The method using pager (1) is as follows. Pagers can be received outside, but not inside large buildings or in basements.

A. A fee is required.

C. After the call is repeated twice, the call is stopped even if the caller cannot be contacted.

The method (2) using the simple wireless communication for business use is as follows. A license is required for use, and appropriate products are not sold. It is legally only for the transmission and reception of voice and does not suit the transmission of codes as intended.

A. V. in the building Non-line-of-sight communication is not possible due to the nature of radio waves in the UHF band, and the purpose cannot be achieved unless a plurality of transmitters are prepared.

The method using the specified low power radio of (3) is as follows. Reception within a building is narrow and requires a large number of transmitters to receive within the entire building.

A. For the above reasons, the equipment price becomes high as a whole.

The method using the guided radio of (4) is as follows. Tracks need to be laid.

A. When contacting a location such as a parking lot or other outdoor facility of a building, it is often difficult to lay a track.

The method using the MCA radio in (5) is as follows. A license (ROM) is required.

A. Since UHF band radio frequency is used, communication outside the line of sight is impossible, and communication to the basement of a building or the like is not possible like a pager.

As described above, five methods can be considered as means for communicating with patrolers in the building, but there are problems with each of them, and in particular, there is no such device including communication means for outdoor facilities associated with the building. Was.

In view of the above, an object of the present invention is to provide an in-building patroller communication device having a sufficient communication function with patrollers in buildings and outdoor facilities at low cost.

[0023]

Means for solving the above-mentioned problems in the present invention include a master unit for transmitting a calling signal, and a slave unit carried by a patroller and receiving the calling signal of the master unit. In the building patroller communication device, the master unit receives and stores a command according to the patroller's charge or call type, and stores and sends an output signal by a call command signal. An inductive radio transmitting unit that receives an output signal and modulates and transmits a high-frequency induction radio current to a line for premises broadcasting; and And a specific low-power wireless transmission unit that transmits the signal to the air through the wireless communication unit. A receiving unit and the specified low power A specific low-power radio receiving unit that receives a radio frequency from a line transmitting unit with an antenna and demodulates and outputs a paging signal; It is composed of a logic circuit unit that receives and displays it or informs the wearer of the alarm by means of an alarm.

[0024]

Since the present invention is constructed as described above, when a calling signal is issued, the base unit simultaneously transmits a calling signal from the guidance radio transmitting unit and the specified low power radio transmitting unit by the calling signal. Therefore, when the patroller is patroling in the building, this is received by the guided radio receiver of the portable unit carried, a call signal is displayed, and an alarm is issued to inform the patroller.

If the patroller is patroling an outdoor facility, the specific low-power receiving unit receives the signal, displays a call signal, and issues an alarm to notify the patroller. Therefore, the patroller can use the call signal to make a telephone call in accordance with the instruction of the call destination and take an emergency measure or action in accordance with the direct instruction signal.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an embodiment shown in the drawings. FIG. 1 is a circuit diagram showing an embodiment of the present invention, which comprises a master unit A as a transmitter and a slave unit B as a receiver. Reference numeral 1A denotes a logic circuit unit of the base unit A, which comprises a call signal receiving circuit 11A and a transmission control circuit 12A. The call signal receiving circuit 11A has a function of receiving and arranging call signals and a function of preventing noise. Has an encoder / storage register for call signals and a constant-speed repetitive transmission / transmission stop control function, accepts and stores a command for each patroller in charge or for each type of call, and stores an inductive radio transmission unit 2A and a specific low power Activate the wireless transmission unit 3A. The induction radio transmission unit 2A includes an induction radio side carrier original oscillator 21A, an FS modulator 22A, a frequency reduction / power amplification unit 23A, and a band-pass filter 24A, and generates a call signal according to a command from the logic circuit unit 1A. The high-frequency current for induction radio is modulated, amplified to a required output, and sent out to the line 10 for local broadcasting as an induction current. At this time, a high-pass filter (coupler) 11 is required to transmit a high-frequency current while preventing the influence on the private broadcast.
Out via. The specific low-power radio transmission unit 3A includes a specific low-power radio-side carrier original oscillator 31A and an FS modulator 32.
A, a frequency multiplying and power amplifying section 33A, and a band-pass filter 34A, and modulates a specific low-power radio high-frequency voltage with a call signal according to a command from the logic circuit section 1A, and amplifies the voltage to a required output. Out through the antenna 12 in the air. The specified low-power wireless transmission unit 3A is a wireless system permitted by the Radio Law.

The handset B is carried by the patroller, receives a call command, is sorted according to the task in charge, and informs the patroller of the call command by displaying and alerting the call command. The induction radio reception unit 1B includes a low power reception unit 2B, a logic circuit unit 3B having a display and an alarm function. The induction radio reception unit 1B includes a coupling coil 11B for induction radio reception and band-pass filtering for selecting a command induction radio wave (carrier). Container 12B
And amplifier 13B having frequency conversion and limiter functions
And demodulator and squelch circuit 1 for cutting off noise when there is no signal
4B, and amplifies and demodulates the high-frequency current induced from the line 10 to the coupling coil, and outputs a calling signal.

The specific low-power radio receiving unit 2B includes an antenna 1
2, a specific low-power wireless receiving antenna 13 for receiving radio waves transmitted from the antenna 2, a band-pass filter 21B for signal selection and other signal interference prevention, an amplifier 22B having frequency conversion and limiter functions, a demodulator and And a squelch circuit 23B for cutting off noise at the time of signal reception. The transmitted radio high frequency is received by an antenna, amplified and demodulated to output a calling signal.

The logic circuit unit 3B includes a register, a decoder,
It comprises a signal control circuit 31B, an alarm device 32B such as a buzzer, a display device 33B, and a signal selector 34B for selecting a set of signals, which are sent from the induction radio receiving unit 1B and the specific low power radio receiving unit 2B. The received call signal is discriminated and received (the signal of the one that has been received correctly and powerfully) is received and stored in a decoder and a register, thereby calling up on a display,
It displays the signal content and issues an alarm when a call signal is received by the alarm device. Reference numeral 15B denotes a comparator, which receives the call signals of both the guide radio receiving unit 1B and the specific low power radio receiving unit 2B, compares the received signal strength with the reception start time, and takes in the signal whose strength is equal to or more than a certain value. If the strength is the same, take in the earlier input signal,
Only one call signal is input to the logic circuit unit 3B.

Since the air conditioner or the like is out of order and the monitoring device (not shown) detects this, or the security officer calls the emergency, the call command signal is output. Emit. This command signal is input to the logic circuit section 1A and received by the call signal receiving circuit 11A, and the transmission control circuit 12A repeatedly issues a call signal for a predetermined time. This paging signal is input to the induction radio transmission unit 2A and the specified low power radio transmission unit 3A, and the induction radio current is modulated from the induction radio transmission unit 2A via the line 10 for premises broadcast to the premises such as a building. It is transmitted to each floor, flows an induced current into the room on each floor, and transmits a specific low-power wireless transmission unit 3A.
Then, the high-frequency voltage for specific low-power wireless communication is modulated and transmitted from the antenna 12 to the antenna.

Therefore, when the maintenance staff carrying the slave unit B is traveling around the building, the call command signal is received from the induction radio receiving antenna 11B of the slave unit B, and the service is assigned to each task. Inform maintenance personnel by selecting and displaying a call command and alarm.

When the maintenance staff is patroling the outside of a building attached to a building such as a parking lot or a gas station where no yard broadcast line is laid, the calling signal from the specified low-power radio transmitting unit 3A is output as a specified signal. From the low power wireless receiving antenna 13,
The paging signal is received, and the maintenance staff is notified by displaying the paging command and alarming in the same manner as described above. At this time, the slave unit B receives the signal in both the induction radio receiving unit 1B and the specific low power receiving unit 2B, but no interference occurs because only the signal with the higher signal strength is taken in by the comparator 15B.

[0033]

As described above, according to the present invention, the base unit of the transmitter shares the logic circuit unit, sends the output paging signal to the induction radio transmission unit and the specified low power radio transmission unit, and performs the induction. A signal obtained by modulating a radio-frequency high-frequency current is passed through a line for premises broadcasting, and the indoor area is set as an induction range. Simultaneously, a specific low-power radio-frequency voltage is modulated and transmitted from the antenna to the air. Any of these inductive radio signals and specific low-power radio signals can be received at the same time or at the same time, and a signal with a strong signal strength can be displayed on a common logic circuit and received as an alarm. If you visit any of them, you can still contact them.

Further, since both the base unit and the slave unit have a circuit configuration in which the logic circuit unit is shared, the size can be reduced. Particularly, in the slave unit, the induction radio receiving unit and the specific low power receiving unit are combined into one case. Since it can be formed compactly, it is easy for maintenance personnel to carry around.

[Brief description of the drawings]

FIG. 1 is a circuit configuration diagram of an embodiment of the present invention.

[Explanation of symbols]

A: Master unit 1A: Logic circuit unit 11A: Call signal receiving circuit 12A: Transmission control circuit (including encoder and register circuit) 2A: Induction radio transmission unit 21A: Induction radio side carrier wave original oscillator 22A: FS modulator 23A: Electric power Amplifying unit 24A Band-pass filter 3A Specific low-power radio transmitting unit 31A Carrier original oscillator 32A FS modulator 33A Power amplifying unit 34A Band-pass filter B ... Handset 1B ... Inductive radio receiving unit 11B ... coupling coil for induction radio reception 12B ... band-pass filter 13B ... amplifier (including frequency conversion unit) 14B ... demodulation and squelch-containing circuit 15B ... comparator 2B ... specific low power reception unit 21B ... band-pass filter 22B ... Amplifier (including frequency conversion unit) 23B ... demodulation / including squelch circuit 3B ... logic circuit unit 31B ... register / decoder signal control circuit 32B ... alarm 33B ... display 34B ... signal selector 10 ... line 11 ... high-pass filter for Public Address (coupler) 12 ... specified low power radio transmission antenna 13 ... specified low power radio receiving antenna

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) H04B 5/00

Claims (1)

(57) [Scope of request for utility model registration] An in-building patroller communication device comprising: a base unit for transmitting a calling signal; and a slave unit carried by the patroller and receiving the calling signal of the base unit. A logic circuit unit that receives and stores commands according to charge or call type and sends out an output signal in accordance with a call command signal, and receives an output signal from the logic circuit unit and modulates a high-frequency current for induction radio on a line for premises broadcasting. An inductive radio transmitting unit for transmitting and receiving an output signal of the logic circuit unit;
A specific low-power wireless high-frequency voltage is modulated, and a specific low-power wireless transmission unit that transmits the air to the air via an antenna is configured.The slave unit uses the induction wireless reception coupling coil to output the signal of the induction wireless transmission unit. An inductive radio receiving unit that receives and demodulates and outputs a calling signal; a specific low power radio receiving unit that receives a radio frequency signal from the specific low power radio transmitting unit by an antenna and demodulates and outputs a calling signal; The call signal output from the inductive radio receiver and the specific low-power radio receiver is input, and the
If the signal strength is equal to or greater than a predetermined level or the signal strength is equivalent
Fetches the signal of the one that arrived earlier and only one
And a call signal of the comparator
To notify the carrier by means of display or alarm
A patrol person communication device in a building, comprising a logic circuit part .