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    • 2. 发明专利
    • Radio communications system
    • JP5369144B2
    • 2013-12-18
    • JP2011141706
    • 2011-06-27
    • パナソニック株式会社
    • 浩司 阪本淳一 鈴木
    • H04W52/02H04W4/04H04W84/18
    • Y02D70/00
    • PROBLEM TO BE SOLVED: To allow long time use even in battery driving by reducing the power required for receiving a reception confirmation message at a transmitter.SOLUTION: A transmitter 1 of battery driving which transmits a message by radio constitutes a radio communication system, together with a monitoring device 2 which returns a reception confirmation message to the transmitter 1 upon receiving the message at the timing integer-multiple of a specified transmission/reception timing, along with a first repeater 3 and a second repeater 4. In the transmitter 1 like this, a communication protocol control part counts the response time before the start of receiving the reception confirmation message after message transmission. At the time of transmission of next message, driving of a radio transmission/reception part is stopped until the response time is expired after the next message transmission. When the response time expires, the radio transmission/reception part is so controlled as to repeat, with interval, a reception standby state in synchronous with the transmission/reception timing.
    • 4. 发明专利
    • Fire Alarm System
    • JP5314537B2
    • 2013-10-16
    • JP2009196128
    • 2009-08-26
    • パナソニック株式会社
    • 圭太郎 干場淳一 鈴木昌典 栗田
    • G08B25/00G08B17/00G08B25/10
    • PROBLEM TO BE SOLVED: To provide a fire alarm system that prevents interference of a radio wave between fire alarms, and quickly notifies all the fire alarms of the occurrence of a fire. SOLUTION: A control part 1 of a specific fire alarm TR in which a predetermined operation input has been accepted by a switch for setting a relay route causes a radio transmission/reception part 2 to transmit a radio signal including a confirmation message to prompt a response message, and causes the radio transmission/reception part 2 to sequentially transmit a radio signal including a search message to search for the fire alarm TR from which no response has been made, to each low-order fire alarm TR that has transmitted the response message. When there is any fire alarm TR from which no response has been made, the control part repeats an operation of causing the radio transmission/reception part 2 to sequentially transmit the radio signal including the search message to each lower-order fire alarm TR that has transmitted the response message until receiving the response message from all the fire alarms TR other than itself. COPYRIGHT: (C)2011,JPO&INPIT
    • 7. 发明专利
    • Fire Alarm System
    • 空值
    • JP5015855B2
    • 2012-08-29
    • JP2008114628
    • 2008-04-24
    • パナソニック株式会社
    • 昌典 栗田隆 藤井淳一 鈴木雅裕 長田
    • G08B17/00G08B26/00H04J3/00H04W74/02H04W76/02
    • Y02D70/00
    • PROBLEM TO BE SOLVED: To reduce the delay of information transmission by the collision of radio signals while prolonging the service life of a battery. SOLUTION: When a fire is not sensed, each fire alarm TR asynchronously transmits the radio signal. When a fire is sensed, a master station TR1 transmits the synchronizing signal of a fixed cycle, respective slave stations TR2 are allocated to a time slot stipulated by the synchronizing signal, and synchronous communication is performed. Further, since a response message for confirming the reception of the radio signal is returned from the slave stations TR2 to the master station TR1 when asynchronous communication and the synchronous communication are switched, the asynchronous communication and the synchronous communication are switched surely in all the fire alarms TR. Also, by transmitting the radio signal including the response message from the slave stations TR2 to the master station TR1 matched with the timing at which the radio transmission/reception part 2 of the master station TR1 is switched to a reception state after the master station TR1 transmits the radio signal including a fire alarm message, the collision of the radio signal including the response message is evaded. COPYRIGHT: (C)2010,JPO&INPIT
    • 解决的问题:通过无线电信号的冲突减少信息传输的延迟,同时延长电池的使用寿命。

      解决方案:当没有感测到火灾时,每个火灾报警器TR异步发送无线电信号。 当感测到火灾时,主站TR1发送固定周期的同步信号,各个从站TR2被分配给由同步信号规定的时隙,并且执行同步通信。 此外,由于当异步通信和同步通信被切换时,用于确认无线电信号的接收的响应消息从从站TR2返回到主站TR1,所以在所有的火中肯定地切换异步通信和同步通信 报警TR。 此外,通过在主站TR1之后,将与来自主站TR1的无线发送/接收部分2的定时匹配的从站TR2的包括响应消息的无线电信号发送到接收状态 发送包括火灾报警消息的无线电信号,避免包括响应消息的无线电信号的冲突。 版权所有(C)2010,JPO&INPIT

    • 9. 发明专利
    • Radio communications system
    • 空值
    • JP4966379B2
    • 2012-07-04
    • JP2009526829
    • 2008-01-16
    • パナソニック株式会社
    • 隆 佐伯昌典 栗田淳一 鈴木浩司 阪本
    • G08B17/00G08B25/10H04W52/02
    • G08B25/10G08B17/00G08B25/007
    • A radio communication system minimizes power consumption against noises. The system includes a first radio terminal (10A) with a first transmitter (40A) for transmitting a first data indicative of a specific event, and a second radio terminal (40A) with a battery (14B) and a receiver (20B). The first radio terminal (10A) includes a first bit interpolator (32A) which inserts a check bit pattern of 01010101 at a predetermined cycle into one frame of the first data. The second radio terminal (10B) has a second power controller (60B) which intermittently activates the second receiver (20B) at predetermined intervals in order to receive the bit-interpolated data from the first transmitter. A check bit detector (24B) is included in the second radio terminal (10B) to detect the check bit pattern from within the bit interpolated data and to issue a stop signal immediately upon occurrence of that the check bit pattern fails to appear at said predetermined cycle within a predetermined time frame shorter than one frame length of the first data. In response to the stop signal, the power controller of the second radio terminal terminates a current receiving operation.
    • 无线电通信系统最小化对噪声的功耗。 该系统包括具有用于发送指示特定事件的第一数据的第一发射机(40A)和具有电池(14B)和接收机(20B)的第二无线电终端(40A)的第一无线电终端(10A)。 第一无线电终端(10A)包括第一比特内插器(32A),其将预定周期的01010101的校验比特模式插入到第一数据的一帧中。 第二无线电终端(10B)具有以预定间隔间歇地激活第二接收机(20B)的第二功率控制器(60B),以便从第一发射机接收位插值数据。 检查位检测器(24B)包括在第二无线电终端(10B)中,以从位内插数据内检测校验位模式,并且在发生校验位模式不能出现在所述预定位置时立即发出停止信号 在比第一数据的一帧长度短的预定时间范围内循环。 响应于停止信号,第二无线电终端的功率控制器终止当前接收操作。