JP2011097172A - Hand microphone - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hand microphone of high security property, as compared with a conventional hand microphone. <P>SOLUTION: The hand microphone for securities has a communication facility to each sensor slave unit within the hand microphone, and includes a voice ROM for outputting voice information according to an ID assigned to each sensor slave unit and a motion sensor for detecting the condition of a hand microphone user. The hand microphone is rich in fast response and allows a person carrying the hand microphone to start direct action, while allowing connection to another portable radio equipment for notification to a base station. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a configuration and system of a security hand microphone that communicates with a plurality of sensor slave units.

  Conventional handheld microphones for portable radios are used to transmit their own voice and dual-tone multi-frequency (DTMF) signals such as numeric keys via attached wireless devices, and the received signals from the attached wireless devices are built into the handheld microphone. It had only the function of making it sound from the made speaker.

  FIG. 9 is a block diagram of a conventional hand microphone. The speaker signal line 19-1, the microphone signal line 19-2, and the power supply line 19-3 are connected to the portable wireless device. The audio signal from the speaker signal line 19-1 is output to the hand microphone user through the speaker 11. The microphone 12 converts the user's voice into an audio signal and supplies it to the portable wireless device from the microphone signal line 19-2. The DTMF signal generation IC 13 generates a DTMF signal and supplies it to the microphone signal line 19-2 via the signal mixer 17-2.

  In order to provide functions other than those described above, there is a product having a configuration in which an interface device to which a microphone can be connected is provided as a separate unit. For example, in Patent Document 1, there is one in which a base station wireless transmission device is provided with a microphone interface, a wireless device interface, and an interface with a personal computer, and is centrally managed.

JP 2003-008527 A.

However, there are the following problems.
(1) Since communication is mainly performed via the base station radio transmission apparatus, there is a drawback of being responsive.
(2) Since all communication is performed by one wireless device, a problem of communication error is likely to occur.
(3) Since a large number of interface devices are connected to the base station radio transmission apparatus and used, there are difficulties in portability and portability.
(4) The system becomes large and the cost is high.

  The present invention has been made in order to solve the conventional drawbacks. A communication function is provided in the hand microphone so that it can be connected to another portable radio device and notified to the base station. It is to provide a configuration of a security hand microphone for a portable wireless device that is capable of direct action by a microphone user and is rich in responsiveness.

  The hand microphone according to the present invention has a first wireless unit for communicating with a plurality of sensor slave units in addition to a built-in microphone and speaker for a normal wireless device, and a voice read-only memory storing necessary voice messages in advance. Memory (voice ROM), motion sensor for detecting motion, microprocessor (CPU) for detecting and controlling signals from the first wireless unit and voice ROM and motion sensor, CPU data backup and emergency short time A rechargeable battery or electric double layer capacitor used as an auxiliary power source to be used, a signal mixer for mixing a signal from a CPU to a microphone signal line, and a signal switching unit for switching a sound signal of a sound ROM to a speaker line are provided.

  The portable wireless device connected to the hand microphone of the present invention is connected only by a speaker signal line, a microphone signal line, and a power supply line that supplies power from the wireless device. A general-purpose portable wireless device that communicates at a frequency different from that of the wireless unit, and the portable wireless device is configured as a wireless device including a second wireless unit having a different frequency and output power.

  A first wireless unit of the same type that communicates with the first wireless unit of the hand microphone is incorporated in each individual sensor slave unit to be monitored. Sensor slave units include an intruder sensor unit with a built-in human body detection sensor that detects intruders, a fire sensor unit that detects smoke or flame to detect fire, and abnormal temperature rise in a room or a specific part. Receives information from the temperature sensor unit to be detected, another monitoring device or sensor device, and determines whether or not there is an abnormality. If there is an abnormality, a signal for emergency call is sent and voice communication is also possible Provide emergency call unit.

  The individual unit of the sensor slave unit is equipped with a first wireless unit of the same type that communicates with the first wireless unit. Since the first wireless unit needs to be miniaturized, a 2.4 GHz band frequency is easy to use, but a wireless unit of another frequency may be used. The individual units are not limited, and sensor units that detect various states can be used.

  The individual unit of the sensor slave unit is configured to be operable for a long period of time by an external power source, a solar cell, a fuel cell, or the like. Each individual unit is assigned an ID number. If there is an abnormality in a specific unit, data including the ID number in addition to the status data is transferred from the first wireless unit of the individual unit to the first in the hand microphone. Reported to the wireless unit.

  The notified hand microphone recognizes the ID number by the built-in CPU, selects a voice message corresponding to the ID number from the voice ROM, and causes the built-in speaker to generate a message. For example, if an intruder sensor unit is installed on the first floor staircase, it will pronounce “Intruder detected at first floor entrance”.

  The hand microphone of the present invention is usually carried by a supervisor such as a security guard connected to a portable wireless device, and promptly moves to a place where there is an abnormality by outputting a corresponding message from the unit where there is an abnormality. Or, using a normal microphone function, it is possible to communicate with the administrator of the base station radio device via a portable radio device for instructions and to request support.

  Furthermore, the hand microphone of the present invention has a built-in motion sensor such as a vibration sensor, and if there is no movement for a certain period of time in the security guard carrying the sensor, it is assumed that there was an abnormality in the security guard. If there is no abnormality, the security guard cancels the abnormality report and if the situation cannot be canceled, the base station will automatically be notified via the portable radio. Equipped with an emergency call function.

  When a large number of hand microphones are in use, the hand microphone itself has an ID code, and the first wireless unit built in the hand microphone or the connected second wireless unit or built-in. Both the first wireless unit and the connected second wireless unit periodically transmit data including an ID code to the base station, and the base station can recognize that a plurality of hand microphones are in operation. It also has an intermittent transmission function.

  As long as the portable wireless device to which the hand microphone is connected is a wireless device having a power supply terminal in a normal microphone speaker connection terminal, general-purpose ultra-high frequency band (UHF) and ultra-high frequency band (VHF) band wireless devices can be used. .

Furthermore, the data from the sensor slave unit received by the first wireless unit of the hand microphone includes status data in addition to the ID code, and the status data is converted into a data format converted by the CPU of the hand microphone. Flowed to the signal line.
The data is captured by the CPU of the second wireless communication unit on the portable wireless device side, and has the function of displaying the related information on its own LCD and transmitting it to the base station. For example, the actual temperature detected by the temperature sensor unit is displayed on the LCD of the portable radio, and data transmission is performed to the base station radio as well as voice communication.

  The CPU of the base station radio device includes a radio unit of the same type as the second radio unit, which can perform voice communication and data communication, and is connected to the Internet via a personal computer (hereinafter referred to as a PC). Furthermore, it has a function to transmit information to a remote manager.

  The base station radio is connected to a PC and has a function of storing the contents of the status information from the portable radio and time information such as the status information contact time in a memory in the PC.

  Furthermore, the hand microphone is equipped with a mode switch for switching functions. In addition to the hand microphone function described above, the emergency call function that can make an emergency call with a simple operation in the event of an emergency, and the location of the guard by the intermittent transmission function It also has a function as a path signal (signal for authentication) transmitter used in the security field for identifying the security and identifying security guards.

  Since the emergency call function and intermittent transmission function are short-time data communication modes, if these data transmission sections are embedded in gaps during a voice call and these functions are operated in a time-sharing manner, the mode switch is turned on. Deleted configurations can also be implemented.

  As described above, according to the present invention, a guard who carries the hand microphone of the present invention at a relatively short distance immediately receives a signal from a sensor slave unit to be monitored and receives easy-to-understand voice message information. Because it is possible, there is an effect of excellent responsiveness when there is an abnormality. In addition, the motion sensor built in the hand microphone has a highly safe function that allows the base station to recognize the security guard's own state.

  According to the present invention, a general-purpose handy radio can be used as the portable radio, and advanced functions such as display and storage of large-capacity data are imposed on the PC of the base station connected wirelessly, thereby providing an advanced system. Can be realized at a low cost.

  According to the present invention, a guard who carries the hand microphone of the present invention located at a relatively short distance from the sensor slave unit can select a frequency in the 2.4 HGz band with relatively little interference such as interference, so there is a possibility of interference. Even if there is interference in many VHF and UHF bands, at least a guard who carries a hand microphone is effective in recognizing an abnormal state.

  According to the present invention, the mode switch provided in the hand microphone allows the emergency call function capable of making an emergency call with a simple operation when an emergency occurs, and the location of the guard and the guard by the intermittent transmission function. Since a function as a path signal transmitter for specifying is also provided, a highly secure hand microphone can be provided.

1 is an overall view of a system of the present invention. It is a block diagram of the hand microphone of the present invention. It is a block diagram of the 1st radio | wireless communication unit used for this invention. It is a block diagram of the intruder sensor unit of this invention. It is a block diagram of the emergency call unit of this invention. It is a data transmission format used in the first wireless communication unit of the present invention. It is a 2nd radio | wireless communication unit block diagram of this invention. It is a flowchart in the composite mode of the hand microphone of the present invention. It is a block diagram of the conventional hand microphone.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is an overall view of the system of the present invention. In this system, there are a hand microphone 10 carried by the guard 9 and a sensor slave unit attached to each individual place. The sensor slave unit includes an intruder sensor unit 3 that detects an intruder, a fire sensor unit 4 that detects flame and smoke, a temperature sensor unit 5 that detects the temperature of a specific location, and another monitoring device and sensor device. An emergency call unit 6 is provided that receives information and determines whether or not an abnormality has occurred.

  The intruder sensor unit 3, the fire sensor unit 4, the temperature sensor unit 5 and the emergency call unit 6 include an external power source or a power source 2 configured to be able to operate for a long time with a solar cell or a fuel cell, and the ID of each unit. The first wireless units 1-2, 1-3, 1-4, and 1-5 that transmit the number and status data wirelessly are built in each unit. In the embodiment, the sensor unit is described in four types, or as many units as practically assignable ID numbers can be installed, and various types of sensors and sensors are combined. It can be configured as a unit.

  The emergency call unit 6 periodically captures data from the image sensor 8 which is another monitoring device, and if there is a difference between the previously captured data and the current captured data, an abnormality has occurred, or an external microphone 7 The sound signal collected in step 1 is converted into a digitized signal and superimposed on the data.

  The hand microphone 10 includes a first wireless unit 1-1 that can receive data from the sensor slave unit, and is connected to a portable wireless device 20 carried by the guard 9 by wire. The portable wireless device 20 includes a second wireless unit 21-1 having a frequency and output power different from those of the first wireless unit. The second radio unit may be described as a unit or may be integrally configured as a radio circuit in a general-purpose radio.

  The portable wireless device 20 includes a second wireless unit 21-2 similar to the portable wireless device 20 in order to communicate with the base station wireless device 30. The base station radio 30 is configured so that a PC 41 that can be operated by the administrator 40 can be connected. The PC can be connected to the Internet line 42, transmits data to the remote PC 43, and the supervisor 50 from a remote location Can receive orders.

  FIG. 2 is a block diagram of the hand microphone 10 of the present invention. The hand microphone 10 includes a speaker 11 that generates an acoustic signal to the security guard 9, a microphone 12 that receives the voice uttered by the security guard 9, a first wireless communication unit 1-1 of the hand microphone, a motion sensor 14, and the like. The CPU 13-1 that controls the voice ROM in an integrated manner, the interface line 13-3 for the first wireless unit, the auxiliary power source 13-2 for data backup of the CPU 13-1 and the emergency use for a short time A speaker amplifier 18 for amplifying a voice message from the CPU 13-1, a switcher 17-1 for switching a speaker signal from the wireless device and a voice message from the CPU 13-1 by a speaker signal line 19-1, and a small output of the microphone A microphone amplifier 16 for amplifying the signal and a microphone signal line 19-2 to the radio unit are connected to the data from the CPU 13-1. A signal mixer 17-2 that mixes data signals, a power supply line 19-3 that receives the main power supply from the radio, and a PTT that sends a press-to-talk (PTT) control signal via the microphone signal line 19-2. A switch 13-4 and a mode switch 13-5 for switching the function of the hand microphone are provided.

  The motion sensor 14 detects the movement of the security guard 9 carrying the hand microphone 10, and uses a sensor of a type that detects some movement, such as a vibration sensor, an acceleration sensor, a pyroelectric sensor, or a tilt sensor. If the security guard 9 has not moved for a certain period of time (for example, 30 seconds), it is assumed that the security guard 9 has an abnormality. If it is output from the ROM 15 and there is no abnormality, the security guard cancels the abnormality report, and if there is an abnormality and cannot be canceled, the base station automatically uses a portable radio device after a certain time (for example, 5 seconds). It also has a function for reporting abnormalities.

  The voice ROM 15 stores data obtained by converting a voice message corresponding to the ID number of each sensor slave unit into ROM. When the designated ID number is recognized by the CPU 13-1, the voice ROM 15 returns a corresponding message, and the speaker amplifier 18 To the speaker via the switch 17-1 and output to the guard 9 as a sound. For example, if there is an abnormality in the fire sensor unit, a “fire has occurred on the 4th floor” will occur. In addition to the message corresponding to the ID, data of a confirmation message as to whether an abnormality report may be sent to the security guard 9 is also stored, and is read out according to an instruction from the CPU 13-1.

  The content of the message in the voice ROM 15 is assigned message data according to the corresponding ID. In the embodiment, one ID is assigned to one sensor unit, but a plurality of IDs are assigned to one sensor unit. By sending different IDs, the phenomenon can be separated. For example, in the case of a fire, if a plurality of messages are assigned depending on whether a smoke sensor, a flame sensor, or a heat sensor is used, a large amount of information can be obtained in advance, so preparations can be made in advance.

  The CPU 13-1 is normally supplied with power from the power supply line 19-3 and supplies power to the microphone amplifier 16, speaker amplifier 18, motion sensor 14, and first wireless unit 1-1. And an auxiliary power source 13-2 composed of a rechargeable battery or an electric double layer capacitor for short-term use for emergency use, charged from the power supply line 19-3 and no longer supplied by the power supply line 19-3 It also has a function of switching and using as an auxiliary power source.

  The first wireless unit 1-1 is set to use the same wireless channel in the same system. In addition, individual ID numbers are assigned to the hand microphones themselves, so that hand microphones having any abnormality can be easily identified.

  The PTT switch 13-4 is connected to the CPU 13-1, and operates as a transmission start switch for simplex communication. In addition, when the motion sensor 14 detects an abnormality, a confirmation message is sent to the security guard 9 Is also provided as a cancel switch after output from the voice ROM 15.

  The CPU 13-1 further includes a mode switch 13-5, which is normally in the hand microphone mode, but shifts to the emergency call mode by switching the mode. In this mode, a function is provided that can transmit the notification message stored in advance in the ROM 15 intermittently or continuously.

  By further switching the mode switch 13-5, the mode is shifted to the intermittent transmission mode. In the intermittent transmission mode, data including an ID assigned to each hand microphone is transmitted intermittently, for example, at intervals of several seconds. This signal has a function that can be transmitted from the first wireless unit, the second wireless unit, or both wireless units.

  Since the first wireless unit and the second wireless unit use different frequency bands, they also have radio wave propagation characteristics. Select the frequency according to the usage environment and transmit wireless signals of two frequencies. Thus, it becomes easy to measure the position of the hand microphone 10.

  This mode switching is configured so that the mode can be switched by a simple operation such as switching to the mode by touching a specific part of the hand microphone in addition to a manual switch. In addition, the number of switching stages can be easily added by using the analog input port of the CPU 13-1.

  Also, since the emergency call mode and intermittent transmission mode are short-time data communication modes, if these data transmission sections are embedded in gaps during voice calls and these functions are activated in a time-sharing manner, the mode switch can be turned on. It can work as a deleted combined mode.

  FIG. 8 will be described with reference to a flowchart showing the operation in the combined mode. In step S1, hand microphone mode setting check is performed. If it is set, the presence or absence of data from the sensor slave unit is confirmed in step S2. If there is data, the ID is read in step S3, and the ID is handled in step S4. The message to be played is extracted from the voice ROM, and the voice message is output from the speaker in step S5.

  Next, the intermittent transmission mode setting is checked in step S6. If it is set, ID data corresponding to the hand microphone is added in step S7, and the setting state of the frequency for intermittent transmission is checked in step S8. In step S9, it is determined whether transmission is performed by the first wireless unit. In step S10, it is determined whether transmission is performed by the second wireless unit. In step S11, the first wireless unit and the second wireless unit are determined. It is determined whether or not to transmit in both, and transmission is executed in S12, S13, and S14.

  In step S15, the emergency call mode setting is checked. If it is set, the alarm message set in step S16 is extracted from the voice ROM and transmitted via the second wireless unit.

  The setting state may be programmed in advance in the CPU 13-1 of the hand microphone, or can be operated by providing a setting switch at the port of the CPU 13-1.

  In addition, since it is a short process such as the ID transmission period, it can be operated in parallel even when using a normal hand microphone. When using a microphone, a message can be heard from the speaker output, It can also be sent to the wireless unit. Although it may overlap with normal received sound, the speaker output from the sensor slave unit is given priority for output. In addition, the warning message can be used without any harm even if the message transmission period is long because the security guard cannot talk with the microphone.

  FIG. 3 shows a block diagram of the first radio unit. The first wireless unit includes, as main components, a first wireless unit CPU 1D that controls the first wireless circuit and data input / output control, a 2.4 GHz wireless (RF) transceiver 1E, and 2. A 4 GHz RF output amplifier 1F, an output filter 1G, and a transmission / reception antenna 1H are provided.

  The CPU 1D includes a serial data input terminal 1B for transmission with an external device, a serial data output terminal 1C, and a power supply terminal 1A. A typical IC for RF transceiver 1E is CC2500 of TEXAS INSTRUMENTS (registered trademark), and 2.4GHz output amplifier 1F can use CC2590 of the same company, and it is a small and inexpensive 10mW RF output wireless transmission / reception data. Units can be configured.

  The first wireless units 1-1, 1-2, 1-3, 1-4, and 1-5 are all wireless units having the same configuration, and the wireless channel to be used is set to the same wireless channel in advance, and the ID number Only the ID assigned to each unit is set. If the setting channel is changed, a large number of groups of the same system can be mixed in the same area.

  FIG. 4 shows a block diagram of the intruder sensor unit 3 of FIG. 1 which is one of the sensor device units. The intruder sensor unit 3 includes a pyroelectric sensor 3B, a pyroelectric sensor 3C, a CPU 3D that controls the operation of the sensor unit, an ID setting switch 3A that sets an ID, and a wireless unit 1-2. The ID setting switch 3A and the wireless channel setting can be set by a program of the CPU 3D in addition to the setting by the switch. In this case, the ID setting switch 3A can be omitted.

  The wireless unit 1-2 and the CPU 3D are connected to each other by a power supply terminal 3E, a serial data input terminal 3F, and a serial data output terminal 3G, and determine whether the abnormality is normal or not by a signal detected by a pyroelectric sensor. When it is determined as abnormal, the hand microphone 10 is notified via the first wireless unit 1-2.

  Since the pyroelectric sensor detects infrared rays emitted from a human body or the like, for example, the pyroelectric sensor 3B and the pyroelectric sensor 3C are installed at two locations apart from the entrance of the room in the lateral direction. If the pyroelectric sensor 3C reacts after reacting, the person exits the room, and if the pyroelectric sensor 3C reacts after reacting, it can be determined that the person has entered the room. The CPU 3D can determine the order of reaction of the pyroelectric sensors 3B and 3C and send an alarm signal, or can notify the number of people leaving the room.

  1 includes a fire sensor unit 4 and a temperature sensor unit 5 in addition to the intruder sensor unit 3, but the components are the same as the intruder sensor unit 3 except for the type of sensor. Each unit includes the first wireless units 1-2 and 1-3, and it goes without saying that other units using various sensors can be assigned, and different ID numbers are assigned to the units. As a result, a large number of sensor slave units can be identified.

  FIG. 5 shows a block diagram of the emergency call unit 6. The emergency call unit 6 has basically the same configuration as the intruder sensor unit 3, but includes an image sensor 6B and an image data memory 6F for recognizing an image, and periodically captures a specific monitoring area, The stored image is stored in the image data memory 6F, and if there is a difference between the specified abnormalities in the image captured this time, the CPU 6E of the emergency call unit determines that there is some abnormality and reports it simultaneously. The D converter 6C and the external microphone 6A also have a function of transmitting sounds and sounds in the monitoring area. Since the sound collected by the external microphone 6A is an analog signal, it is converted into a digital signal by the A / D converter and data is transmitted using the first wireless unit 1-5 built in via the CPU 6E. It has a function of transmitting the ON / OFF 6D input state as data.

  The first wireless units 1-1, 1-2, 1-3, 1-4, and 1-5 can always communicate with each other, but data from each sensor unit may overlap, A different retransmission interval is assigned, and transmission is repeated until the transmission side confirms that data has been received at the reception side. Since different retransmission intervals are assigned to each unit, data can be received in the shortest time without overlapping again even if transmissions are overlapped once.

  FIG. 6 shows an example of a data transmission format used in the first wireless unit. The first data part is a preamble, which serves to prevent data loss due to delay of the start of the signal with digital data of several tens of bits. The second is a synchronization code, which is common to the groups used in this system. The same group sets the same synchronization code. The third is an ID code, in which one or more ID codes are set in each sensor unit. The fourth is status data, which can be set for alarm presence / absence, numerical data, and voice compression data. The fifth is an error correction code for detecting and correcting data errors with a forward error correction code (FEC). The number of bits of each data part can be set arbitrarily, but a large number of IDs can be set by increasing the number of bits. However, although the data length becomes long and communication time is required, the data communication using the frequency of 2.4 GHz can be processed in a short communication time.

  FIG. 7 is a block diagram of the second wireless units 21-1 and 21-2. The second wireless unit includes a transmitting / receiving antenna 21A, an antenna switch 21B, an RF amplifier 21C, a mixer 21D, an intermediate frequency (IF) amplifier 21E, a detection unit 21F, an audio band (AF) amplifier 21G, and a speaker 21H. System circuit, a microphone 21N, a microphone amplifier 21O, a mixer 21P, a modulation amplifier 21Q, a transmission system circuit that is a transmission amplifier 21R, a frequency control oscillation circuit (VCO) 21I, and a frequency control that is a phase-locked closed circuit (PLL) 21J. A system circuit, a liquid crystal display (LCD) 21K, operation keys 21M, a control system circuit for a CPU 21L, and a data input terminal 21S and a data output terminal 21T as external terminals are provided.

  Although the second wireless unit is described as a unit, this is the same as the basic circuit of the integrated VHF or UHF band wireless device, and the integrated portable wireless device can be used as it is. The hand microphone 10 is connected to a portable radio 20 carried by the guard 9 by wire, and the second radio units 21-1 and 21-2 are different in frequency and output power from the first radio unit. Wireless unit 21-1.

  Since the portable radio device 20 and the base station radio device 30 communicate from a relatively distant place, the second radio units 21-1 and 21-2 are selected to have a frequency with a high output power. The second wireless units 21-1 and 21-2 have a lower frequency than the first wireless unit, which is advantageous for voice communication. In order to keep the system cost down, the data modulation method of minimum shift keying (MSK) or frequency shift (FSK) is used for data communication. However, if wireless devices capable of digital data communication become cheaper, digital data It is easier to process a lot of data by using a transmission type radio.

  The base station radio 30 is configured so that a PC 41 that can be operated by the administrator 40 can be connected. The PC can be connected to the Internet line 42, transmits data to the remote PC 43, and the supervisor 50 from a remote location It is configured to receive voice commands.

  Note that this hand microphone follows the conventional function, and can perform voice communication with the base station mutually, and the DTMF signal can be transmitted from the CPU 13-1.

  As described above, according to the hand microphone according to the present invention, it is possible to communicate with various sensor slave unit units having the same communication function by providing the hand microphone with a communication function, which sensor slave unit It is possible to report to the base station by connecting to a portable radio at the same time that the security guard can easily recognize whether or not an abnormality has been detected. It is possible to provide a handheld microphone for a portable radio device that can take immediate action and is highly responsive.

  According to the present invention, when there is an abnormality in the security guard carrying this hand microphone, the state of the security guard is detected by the built-in motion sensor. Can provide a microphone.

  According to the present invention, in the hand microphone, in addition to the hand microphone function, when an emergency situation occurs, the emergency call function that can make an emergency call with a simple operation, and the location of the security guard by the intermittent transmission function, and the guard Since a function as a path signal transmitter for identifying the camera is also provided, a highly secure hand microphone can be provided.

1-1 to 1-5 ... the first wireless unit,
1A ... Power line of the first wireless unit,
1B: Serial data input,
1C ... serial data output,
1D: CPU of the first wireless unit,
1E ... 2.4GHz RF transceiver,
1F ... 2.4GHz RF output amplifier,
1G ... Output filter,
1H: antenna of the first wireless unit,
2 ... Each sensor unit power supply,
3 ... Intruder sensor unit,
3A ... ID setting switch,
3B ... Pyroelectric sensor 1,
3C ... Pyroelectric sensor 2,
3D ... CPU of the sensor unit,
3E ... Power line,
3F ... Serial data input,
3G ... serial data output,
4 ... Fire sensor unit,
5 ... Temperature sensor unit,
6 ... Emergency call unit,
6A ... external microphone,
6B ... Image sensor,
6C ... A / D converter,
6D ... Switch ON / OFF input,
6E ... Emergency call unit CPU,
6F: Image data memory,
6G ... power line,
6H: Serial data input,
6I Serial data output,
7 ... External microphone,
8: Image sensor unit,
9 ... security guards,
10 ... Security microphone,
11 ... Speaker,
12 ... Mike,
13 ... DTMF signal generating IC,
13-1 ... CPU of security microphone,
13-2 ... Auxiliary power supply,
13-3... Control signal and power control line,
13-4 ... PTT switch,
13-5 Mode switch,
14 ... Motion sensor,
15 ... Voice ROM,
16 ... Microphone amplifier for security microphone,
17-1... Signal switcher,
17-2 ... Signal mixer,
18 ... Security microphone speaker amplifier,
19-1 ... Speaker signal line,
19-2. Microphone signal line,
19-3: Power supply line,
20 ... Portable wireless device,
21-1, 21-2 ... second wireless unit,
21A: Transmit / receive antenna,
21B ... Antenna switcher,
21C ... RF amplifier,
21D ... Mixer,
21E ... IF amplifier,
21F ... detection section,
21G AF amplifier,
21H ... Speaker,
21I ... VCO,
21J ... PLL,
21K ... LCD,
21L ... CPU,
21M ... operation keys,
21N ... Mike,
21O ... Microphone amplifier,
21P ... Mixer,
21Q: Modulation amplifier,
21R: Transmitting amplifier,
21S: Data input terminal,
21T: Data output terminal,
30 ... base station radio,
40 ... Base station administrator,
41 ... Base station personal computer,
42 ... Internet,
43. Remote personal computer,
50 ... A remote manager.

Claims (3)

  A first wireless communication unit capable of communicating with a plurality of sensor slave units incorporating the first wireless communication unit is provided, and a connection line that allows connection to the second wireless communication unit is provided. A hand microphone provided with an audio ROM that outputs audio data corresponding to the ID of the sensor slave unit when receiving a data signal including an ID.   When a motion sensor is built in the above hand microphone and the motion sensor does not react for a certain period of time, it is assumed that there was an abnormality and a message is output from the built-in voice ROM to the hand microphone owner, and then assigned to each hand microphone. The hand microphone according to claim 1, wherein the hand microphone is configured so that data including the ID can be reported using the second wireless communication unit.   An emergency call mode in which a specific message in the voice ROM is intermittently or continuously transmitted to the hand microphone to the second wireless unit, and data including the ID of the hand microphone is periodically sent to the first wireless unit or the second wireless unit. The hand microphone according to claim 2, further comprising a function of switching or simultaneously operating a constant transmission function mode for transmitting to both the wireless unit and the first and second wireless units.

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