JP4639597B2 - Wireless communication apparatus and program - Google Patents

Description

  The present invention particularly relates to a wireless communication apparatus and a program that configure a home network in a home.

  In recent years, white goods such as air conditioners and refrigerators, security devices such as intrusion sensors, and home controllers installed in the home are connected wirelessly and connected to the home controller via a server using a mobile phone from outside the house. However, home network systems have been developed that control white goods such as air conditioners, and notify home security devices of information about home security devices via mobile phones. In such a home network system, a plurality of channels are generally assigned to the same system in consideration of jamming. Some wireless communication devices and programs in this type of home network system are described below (see, for example, Patent Document 1).

  FIG. 10 shows a communication message format used in the conventional wireless communication device described in Patent Document 1. The header part (1) 101a, the header part (2) 101b, and the header part (3) 101c are repeatedly transmitted. It is configured. Each of the header parts (1) to (3) includes a first bit synchronization signal 102, a first frame synchronization signal 103, a first control code 104, and a first partial identification code 105. Then, after the repetition of the header portion 101, the second bit synchronization signal 107, the second frame synchronization signal 108, the second control code 109, the second partial identification code 110, and the data signal 111 are transmitted as the information portion 106. It is configured to be.

  FIG. 11 illustrates a case where a wireless telegram is transmitted to the receiver C that performs intermittent reception at the time interval T.

In FIG. 11, the sender A transmits a wireless message to the receiver C using one channel. At this time, the configuration of the wireless telegram is the intermittent reception cycle of the receiver C: a header (header portion (1) 101a, header portion (2) 101b, header portion (3) 101c shown in FIG. ) Is repeated N times, and the information unit 106 is transmitted. On the other hand, when the transmission request to the receiver C is also generated in the sender B, since there is a carrier in the wireless transmission message transmitted by the transmitter A in the first channel, the wireless message is transmitted to the receiver C in the two channels. Send.
JP 2000-270041 A

  However, in the above-described conventional configuration, when a wireless telegram is continuously transmitted from the sender A to the receiver C over one channel (hereinafter referred to as continuous transmission), the length is longer than the intermittent reception cycle of the receiver C. As described above, the number of repeated transmissions N in the header part is set and the wireless telegram is continuously transmitted. Therefore, when the intermittent period of the receiver C is long, for example, when it is intermittent for 15 seconds, it is necessary to continuously transmit a wireless message having a length of (15 seconds + α) from the sender A to the receiver C. Therefore, since the receiver C receives the wireless message while transmitting the wireless message from the sender A, the receiver C cannot receive the receiver C even if the sender B transmits the wireless message to the receiver C. Further, when the traffic of the transmitted message increases or the intermittent period of the receiver C becomes longer, there is a problem that this current situation becomes noticeable and the wireless system cannot be realized (for example, emergency notification requiring urgency) For example, when a device is included, the notification is not notified for a long time.

  The present invention solves the above-described conventional problems, and by varying the number of times wireless messages are continuously transmitted according to the other party's intermittent reception cycle, the required communication time is shortened and the reliability of the wireless system is improved. An object of the present invention is to provide a wireless communication apparatus and a program that can be implemented.

  In order to solve the conventional problem, a wireless communication device of the present invention includes a wireless transmission unit that transmits a wireless telegram, a partner reception cycle storage unit that stores an intermittent reception cycle of the partner wireless communication device, and the partner reception cycle. Based on the intermittent reception cycle stored in the storage means, a continuous transmission number determining means for determining the continuous transmission count of the wireless telegram and a control means for controlling the respective means are provided.

  Thus, the control means uses the intermittent reception period of the counterpart wireless communication device stored in the counterpart reception cycle storage means to determine the continuous transmission count at the time of transmitting the radio message using the continuous transmission count determination means. decide.

  In addition, the program of the present invention causes a computer to realize at least a part of the functions of the wireless communication device. Thus, the function of the wireless communication device can be realized with simple hardware.

  The wireless communication apparatus and program of the present invention can shorten the time required for communication and improve the reliability of the wireless system by changing the number of times of continuous transmission of wireless messages according to the intermittent reception cycle of the other party. .

The first invention includes a wireless transmission unit that transmits a wireless message, a wireless reception unit that receives a response message to the transmission of the wireless message, a counterpart reception cycle storage unit that stores an intermittent reception cycle of the counterpart wireless communication device, The upper limit of the number of retransmissions for retransmitting the wireless message when the wireless reception unit cannot receive a response message to the transmission of the wireless message to the counterpart wireless communication device is set to the intermittent reception cycle stored in the counterpart reception cycle storage unit. By providing the retransmission number determining means to be determined based on the control means for controlling each of the means, the control means stores the number of retransmissions of the radio message in the counterpart reception cycle storage means by using the retransmission number determining means. Therefore, the time required for communication can be shortened and the reliability of the wireless system can be improved.

In particular, in the second invention, in the first invention , the time required for communication is shortened by determining the number of times the wireless message is continuously transmitted in the broadcast communication in conjunction with the number of times the wireless message is retransmitted. The reliability of the wireless system can be improved. Further, the reliability of communication in individual communication and the reliability of communication in broadcast communication can be made the same level.

According to a fifth aspect of the invention, in particular, in the first or second aspect of the invention , a carrier detection means for detecting whether or not a channel for transmitting a wireless telegram is available, and a communication group from signals received by the wireless reception means A wireless system identification code detecting means for detecting a wireless system identification code for designating a channel, and when the carrier detecting means detects that there is a carrier in the channel to be transmitted, the wireless receiving means receives the radio wave of the channel. When the wireless system identification code detecting means detects a wireless system identification code indicating a communication group to which the wireless system identification code belongs, the wireless transmission means is activated after the carrier detecting means detects that there is no carrier. And transmitting a wireless telegram on the channel and detecting the wireless system identification code If the stage does not detect the wireless system identification code indicating the communication group to which it belongs, the channel is changed and carrier detection is performed by the carrier detection means. If there is no carrier, the wireless transmission means is activated. Since the wireless telegram is transmitted through the changed channel, when other communication devices belonging to the same communication group are transmitting radio waves, the transmission of the communication device can be suspended until the transmission of the communication device is completed.

In particular, the fourth invention includes a delay time generating means generated based on a specific numerical value provided in the wireless communication device in the third invention , and the carrier detecting means continues to receive the received channel and the carrier detecting means has no carrier. When the wireless transmission means is activated and the wireless message is transmitted on the channel after detection, after detecting that there is no carrier, carrier detection is performed again with a delay of the delay time generated by the delay time generation means. If there is no wireless communication device in the same channel as there is a wireless communication device that refrains from transmission, there is no need to transmit radio waves simultaneously with the wireless communication device. Can do.

According to a fifth aspect of the present invention, there is provided a program for causing a computer to realize at least a part of the functions of the wireless communication device according to any one of the first to fourth aspects of the invention. By cooperating hard resources, at least a part of the wireless communication apparatus of the present invention can be easily realized. In addition, the program can be distributed / updated and installed easily by recording on a recording medium or distributing the program using a communication line.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a block diagram of a wireless communication apparatus according to the first embodiment of the present invention.

  In FIG. 1, a wireless communication device 1 includes a partner reception cycle storage unit 2 that stores the intermittent reception cycle of the partner wireless communication device, and a plurality of wireless telegrams according to the partner intermittent reception cycle detected by the partner reception cycle storage unit 2. Communicating with the home appliance 6 and the continuous transmission number determination means 3 for determining the number of transmissions (hereinafter referred to as the continuous transmission number), the wireless transmission means 5 connected to the antenna 4 and continuously transmitting wireless telegrams. External communication means 7 that is an interface for the above, and control means 8 for controlling each means.

  FIG. 2 shows an example of a wireless communication system using the wireless communication apparatus 1 in the present embodiment. In FIG. 2, a block configured by the communication processing unit 9 and the wireless communication device A10 is a home controller, and a block configured by the wireless communication device B11 and the air conditioner 12 is a network-compatible home appliance controlled by the home controller. Although not shown in FIG. 2, the home controller has a touch panel, and can control the air conditioner 12 by pressing a button on the touch panel. The wireless communication device A10 constituting the home controller and the wireless communication device B11 connected to the air conditioner 12 are connected by a protocol using a specific low power wireless wave of 429 MHz band.

  As a protocol using a specific low-power radio wave in the 429 MHz band, standardized protocols such as a gas automatic meter reading protocol and an Echonet (R) protocol are conceivable.

  The wireless communication device A10 or the wireless communication device B11 in FIG. 2 corresponds to the wireless communication device 1 in FIG. The communication processing unit 9 or the air conditioner 12 in FIG. 2 corresponds to the home appliance 6 in FIG. Here, a message structure transmitted and received between the wireless communication device A10 and the wireless communication device B11 in FIG. 2 will be described with reference to FIG.

  In FIG. 3, (1) shows the entire data format configuration. In (1) of FIG. 3, the section (a) is called a header portion, and (bit synchronization signal 1 + frame synchronization signal 1 + data signal 1) is set to correspond to a reception method in which a plurality of channels are sequentially scanned as a reception channel and waits. This block is repeatedly transmitted N times as one block. The section (b) is an information part including data. The section (c) is a signal indicating the end of transmission, but may not be present.

  The detailed configuration of data 1 is shown in (2) of FIG. The detailed configuration of data 2 is shown in (3) of FIG. The data 1 includes destination information, that is, a receiving device identification code indicating a destination, and a partial wireless system identification code that is a part of a wireless system identification code that identifies whether the system belongs to itself. The partial radio system identification code is obtained by dividing the radio system identification code into three parts. For example, if the radio system identification code is 12 digits, the upper 4 digits, the middle 4 digits, and the lower 4 digits are divided into 3 and inserted in order. ing. Data 2 includes a wireless system identification code and a transmission device identification code indicating a transmission source. For example, when transmitting a wireless message, the wireless message is transmitted by setting the number of repeated transmissions N times in the header portion so that the length is equal to or longer than the intermittent reception cycle of the counterpart wireless communication device.

  The operation and action of the wireless communication apparatus configured as described above will be described below with reference to the communication sequence diagram shown in FIG.

  First, a communication sequence for notifying the communication processing unit 9 of the home controller that the operation state of the air conditioner 12 has changed and the operation has been turned on via the wireless communication device B11 and the wireless communication device A10 will be described. When the air conditioner 12 is operated from a remote controller or the like and the operation state changes from OFF to ON, the air conditioner 12 transmits an operation ON message indicating that the operation state is ON (S1).

  The control means 8 in the wireless communication device B11 receives the operation ON message via the external communication means 7, and acquires the intermittent reception cycle of the wireless communication device A10 that is the counterpart wireless communication device from the counterpart reception cycle storage means 2. Then, the continuous sending number determining means 3 is used to determine the continuous sending number.

  For example, if the intermittent reception cycle is continuous, the number of continuous transmissions is 3 times. If the intermittent reception cycle is 0.5 seconds, the number of continuous transmissions is 2 times. If the intermittent reception cycle is 3 seconds, the number of continuous transmissions is 1 time. To do.

  Then, the number N of repeated transmissions of the header portion is set according to the intermittent reception cycle of the counterpart wireless communication device stored in the counterpart reception cycle storage means 2 of the radio communication device A10. For example, if the intermittent reception cycle is 3 seconds, 67 The wireless transmission means 5 is used to transmit a wireless telegram (operation ON) from the antenna 4 (S2). That is, the header part (section (a) in FIG. 3) repeatedly transmits the block of (bit synchronization signal 1 + frame synchronization signal 1 + data signal 1) 67 times to the wireless communication device B11 which is the counterpart wireless communication device. .

  On the other hand, in the wireless communication apparatus A10, when the control unit 8 receives a wireless message (operation ON) via the antenna 4, the operation ON message is transmitted to the home controller via the external communication unit 7 (S3).

  These operations are shown in the flowchart of FIG. As described above, when the control unit 8 receives a wireless telegram via the external communication unit 7 (S4), the intermittent reception cycle of the counterpart wireless communication device stored in the counterpart reception cycle storage unit 2 is acquired (S5). Then, the number of continuous transmissions is determined using the continuous transmission number determining means 3 (S6, S7, S8), and a wireless telegram is transmitted from the antenna 4 using the wireless transmission means 5 (S9).

  Therefore, even if the other party reception cycle is different, if the number of consecutive transmissions is constant, when the other party reception cycle is short, for example, when it is continuous, the header repeat transmission time can be shortened. Therefore, the influence on communication of other wireless communication devices is small. However, when the other party's reception cycle is 3 seconds or longer, the repeated transmission time of the header becomes long, so the traffic in the wireless section becomes large, and other wireless communication devices cannot communicate during this time. The required communication time becomes longer and the reliability of the wireless system is reduced. Here, in the present embodiment, the control unit 8 can acquire the intermittent reception cycle of the counterpart wireless communication device stored in the counterpart reception cycle storage unit 2 and change the number of continuous transmissions. Shortening can be achieved and the reliability of the wireless system can be improved. Note that when the intermittent reception cycle is extended, the number of times of continuous transmission decreases, and when wireless communication fails, the wireless software is not automatically transmitted by the lower software, and the retransmission processing is performed by the upper software. Can be considered.

  In this embodiment, if the intermittent reception cycle is continuous, the number of continuous transmissions is 3 times, if the intermittent reception cycle is 0.5 seconds, the number of continuous transmissions is 2 times, and if the intermittent reception cycle is 3 seconds, the number of continuous transmissions is 1 time. However, when the time interval of the intermittent period is t1, t2, t3 and the number of times of continuous transmission is n1, n2, n3, the relationship is t1 ≦ t2 ≦ t3, n1 ≧ n2 ≧ n3. You only have to set it.

  In this embodiment, before transmitting a wireless telegram, the control means 8 uses the wireless reception means to check whether the channel to be transmitted is free (whether there is a carrier). It is also possible to transmit a wireless telegram when there is no carrier.

  In the present embodiment, when the partner wireless communication apparatus cannot receive a wireless message, there is a method for instructing retransmission from the home appliance 6 or a method for causing the user to operate a button again to transmit a wireless message. Conceivable.

(Embodiment 2)
FIG. 6 is a block diagram of a wireless communication apparatus according to the second embodiment of this invention. The difference from the first embodiment is that, instead of the continuous transmission number determination means 3, a retransmission number determination means 13 for determining the number of retransmissions of a wireless transmission message, a wireless reception means 14 for receiving a wireless message, and a wireless reception means 14 are provided. A channel scanning unit 15 that sequentially scans a plurality of channels by using and a carrier detection unit 16 that detects the presence or absence of carriers in the channels scanned by the channel scanning unit 15 are provided.

  The operation and action of the wireless communication apparatus configured as described above will be described below with reference to FIG. 6 and FIG. 7 which is a communication sequence example.

  A communication sequence in which the operation of the air conditioner 12 is turned on from the communication processing unit 9 of the home controller and the air conditioner 12 is turned on will be described.

  The communication processing unit 9 transmits an operation ON request message to the effect that “turn on the air conditioner” to the wireless communication device A10 (S10). The control means 8 in the wireless communication apparatus A10 receives the operation ON request message via the external communication means 7. Then, in order to confirm whether or not the channel to be transmitted is vacant (whether there is a carrier), the control means 8 uses the radio reception means 14 to perform carrier sense on the channel using the channel scanning means 15. Do.

  When no carrier is detected from the carrier detection means 16, the intermittent reception cycle of the counterpart wireless communication device stored in the counterpart reception cycle storage means 2 is acquired. For example, if it is 0.5 seconds, the header portion corresponding to 0.5 seconds is obtained. A repetitive transmission count of 18 is set, and a radio telegram (operation ON request) is transmitted through the antenna 4 using the radio transmission means 5 (S11). After transmitting the wireless message (operation ON request), the antenna 4, the wireless receiving unit 14 and the channel scanning unit 15 are used to wait for a response message (ACK message), but when the response message cannot be received (S 12), the control unit 8 retransmits the wireless telegram (operation ON request).

  The number of retransmissions at this time is determined by using the retransmission number determination unit 13 based on the intermittent reception cycle of the partner wireless communication device stored in the partner reception cycle storage unit 2. For example, if the intermittent reception cycle of the counterpart wireless communication device is continuous, the number of retransmissions is determined to be 3 times, if the intermittent reception cycle is 0.5 seconds, the number of retransmissions is 2 times, and if the intermittent reception cycle is 3 seconds, the number of retransmissions is determined to be 1 time. FIG. 7 shows a case where retransmission is performed twice because the intermittent reception cycle of the counterpart wireless communication apparatus is 0.5 seconds (S13 to S16).

  On the other hand, in the wireless communication device B11, when the control unit 8 receives the wireless message (operation ON request) of the air conditioner via the antenna 4, the control unit 8 returns the ACK message to the air conditioner 12 via the external communication unit 7. Then, the air conditioner is turned ON by transmitting an operation ON request message (S17).

  In this way, even if the other party reception cycle is different, if the number of continuous transmissions is constant, when the other party reception cycle is short, for example, when it is continuous, the repeated transmission time of the header can be shortened. Since the traffic is small, the influence on the communication of other wireless communication devices is small. However, when the other party's reception cycle is 3 seconds or longer, the repeated transmission time of the header becomes long, so the traffic in the wireless section becomes large, and other wireless communication devices cannot communicate during this time. The required communication time becomes longer and the reliability of the wireless system is reduced. Therefore, in the present embodiment, the control unit 8 uses the retransmission number determination unit 13 to determine the number of retransmissions of the radio message based on the intermittent reception cycle of the counterpart wireless communication device stored in the counterpart reception cycle storage unit 2. The required communication time can be shortened and the reliability of the wireless system can be improved.

  In the present embodiment, after receiving the operation ON request message, the air conditioner 12 transmits a response message for informing the home controller that the air conditioning operation has started via the wireless communication device B11 and the wireless communication device A10. It can also be.

  In the present embodiment, it has been described as having an individual communication function for designating a partner wireless communication device and transmitting a wireless message, but also has a function for continuously transmitting the wireless message described in the previous embodiment. In some cases, the continuous transmission number determined by the continuous transmission number determination unit 3 may be linked to the retransmission number determined by the retransmission number determination unit 13.

  Accordingly, by determining the number of times of continuous transmission of wireless telegrams during broadcast communication in conjunction with the number of retransmissions of wireless telegrams, it is possible to shorten the time required for communication and improve the reliability of the wireless system. Further, the reliability of communication in individual communication and the reliability of communication in broadcast communication can be made the same level.

(Embodiment 3)
FIG. 8 is a block diagram of a wireless communication apparatus according to the third embodiment of this invention.

  The difference from the first embodiment is that a wireless system identification code detecting means 17 for detecting a wireless system identification code included in a wireless message received by the wireless receiving means 14, and a device identification code detecting means 18 for detecting a device identification code. It is a point with.

  The operation and action of the wireless communication apparatus configured as described above will be described below with reference to FIG. Consider a case where there are at least three devices, ie, wireless communication device A, wireless communication device B, and wireless communication device C in the home, and each device is equipped with wireless communication device 1 of FIG.

  First, it is assumed that a transmission request event addressed to the wireless communication device A occurs in the wireless communication device B. Then, the wireless communication device B transmits a wireless message addressed to the wireless communication device A on channel 1 (ch1) as shown in FIG. 9 ((1) wireless communication device B⇒transmission to the wireless communication device A). The wireless communication device A detects the wireless telegram and receives the channel 1.

  Next, when a transmission request event to the wireless communication device A occurs at the timing of FIG. 9 in the wireless communication device C, the control means 8 in the wireless communication device C determines whether or not a channel to be transmitted is available (whether there is a carrier). In order to confirm, carrier sensing is performed on the channel using the channel receiving unit 14 using the radio receiving unit 14, and whether or not there is a carrier in the channel 1 and channel 2 is detected using the carrier detecting unit 16. To do. If there is no carrier in channel 1 and channel 2, radio waves are transmitted to wireless communication apparatus A in either channel 1 or channel 2.

  However, if there is a radio wave in either channel 1 or channel 2, the radio wave is received (FIG. 9 shows the case where there is a radio wave in channel 1). Then, the radio wave of channel 1 is received, and the “(1) radio communication device B → transmission to radio communication device A” radio wave, that is, the partial radio system identification code and the radio system identification code in the data format shown in FIG. Detection of the partial radio system identification code included in data 1 in FIG. 3 and the radio system identification code included in data 2 is performed by the radio system identification code detection means 17 in FIG.

  Usually, since the section (a) occupies a long time, the probability of detecting the partial radio system identification code in the first section (a) is high. If the partial wireless system identification code does not match a part of the wireless system identification code held by the wireless communication device C, it is not a radio wave from the group to which the wireless communication device C belongs, that is, the wireless communication device A and the wireless communication device B. Judgment is performed and “(2) wireless communication device C → transmission to wireless communication device A” is performed on channel 2. However, if the partial wireless system identification code matches a part of the wireless system identification code possessed by the wireless communication apparatus C, the partial wireless system identification code of the next block is detected and the wireless system identification possessed by the wireless communication apparatus C is detected. When a part of the code matches and matches, the partial radio system identification code of the next block is further detected.

  Thereafter, when the above operation is repeated and the wireless system identification code matches the wireless system identification code possessed by the wireless communication apparatus C in the section (b), reception continues until there is no carrier in channel 1. That is, it waits for a transmission request event. When the carrier runs out, “(2) wireless communication device C → transmission to wireless communication device A” is executed on channel 1 as shown in FIG. Although it has been described that the transmission request event of the wireless communication apparatus C has occurred in the section (a), when the transmission request event has occurred at the beginning of the section (b), the wireless system identification code in the data 2 is first set. Will be detected from. If the transmission request event occurs after the wireless system identification code of data 2, since the wireless system identification code cannot be detected, “(2) transmission from wireless communication device C to wireless communication device A” on channel 2 after a certain timeout occurs. Will be executed. The series of control and determination is performed by the control means 8 shown in FIG.

  Therefore, by combining the operation of the first or second embodiment described above with the operation of the present embodiment, when another communication device belonging to the same communication group is transmitting radio waves, the transmission of the communication device is completed until the communication device ends. Therefore, the reliability of the wireless system can be further improved.

  In the present embodiment, only the wireless system identification code is detected and it is determined whether or not it matches the wireless system identification code possessed by the wireless communication apparatus C. However, the device identification code is also detected and “(2) This is used as a judgment material for determining at which timing “radio communication device C → transmission to radio communication device A” is executed. That is, when the partial radio system identification code or the radio system identification code included in the data 1 or data 2 of FIG. 8 further detects the reception device identification code included in the data 1 or the transmission device identification code included in the data 2 by the device identification code detection means 18 of FIG. Then, the control means 8 checks whether or not the device identification code of the wireless communication device A, which is the counterpart device to be transmitted from the wireless communication device C, coincides with the detected reception device identification code or transmission device identification code. If they match, reception continues until there is no carrier in channel 1. When the carrier runs out, as shown in FIG. 9, “(2) wireless communication device C → transmission to wireless communication device A” can be executed on channel 1.

  In this embodiment, reception is continued until there is no carrier in channel 1. When the carrier runs out, the delay time generating means included in the control means 8 waits for a predetermined time T and then carrier senses the channel 1 again. If there is no carrier, the channel 1 can be configured to execute “(2) wireless communication device C → transmission to the wireless communication device A”. If there is a carrier, the operation described in this embodiment is repeated again.

  Here, the predetermined time T is generated based on a value unique to the device (for example, a manufacturing number or a device identification code is used). Therefore, even when there is a wireless communication device that refrains from transmitting as with itself, it is possible to prevent radio waves from being transmitted at the same time as the communication device. Can be improved.

  In the first to third embodiments, as a method of storing the intermittent reception cycle of the wireless communication device A10 in the counterpart intermittent reception cycle storage unit 2, a method of receiving intermittent reception cycle information from the wireless communication device A10 at the time of registration, A method of connecting a setting device such as a personal computer instead of the home electric appliance 6 via the control means 8 and the external communication means 7 and setting with a setting message from the setting device is conceivable.

  In the first to third embodiments, the home appliance 6 includes a security sensor, an infrared sensor, a glass breakage sensor, a magnet sensor, a shock sensor, a flame sensor, a human body detection sensor, a gas leak sensor, an ultrasonic sensor, and a weight sensor. The same can be done for security devices such as the above.

  In the first to third embodiments, the wireless system may include two or more wireless communication devices that scan a plurality of predetermined channels, and is limited to the embodiment. is not.

  In the first to third embodiments, at least a part of the functions can be executed by a computer program.

  The means described in the first to third embodiments are hardware resources such as a CPU (or microcomputer), a RAM, a ROM, a storage / recording device, an electrical / information device including an I / O, a computer, a server, and the like. You may implement in the form of the program which cooperates. In the form of a program, it is possible to easily distribute / update new functions and install them by recording them on a recording medium such as magnetic media or optical media, or by using a communication line such as the Internet.

  As described above, the wireless communication device and the program according to the present invention can change the number of times of continuous transmission of wireless telegrams according to the intermittent reception cycle of the counterpart wireless communication device, so that the communication time can be shortened. Therefore, it is possible to perform efficient data communication, and is useful not only for home networks at home but also as wireless communication devices for performing data communication.

1 is a block diagram of a wireless communication apparatus according to Embodiment 1 of the present invention. Block diagram of a communication system using the same wireless communication device The figure which shows the data format which the radio | wireless communication apparatus transmits Communication sequence diagram of a communication system using the same wireless communication device Flow chart of the wireless communication device Block diagram of a wireless communication apparatus according to Embodiment 2 of the present invention Communication sequence diagram of a communication system using the same wireless communication device Block diagram of radio communication apparatus according to Embodiment 3 of the present invention The figure explaining operation | movement of the radio | wireless communication apparatus The figure which shows the data format which the conventional radio | wireless communication apparatus transmits The figure explaining operation | movement of the radio | wireless communication apparatus

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Radio | wireless communication apparatus 2 Counterpart reception period memory | storage means 3 Continuous transmission frequency determination means 5 Wireless transmission means 8 Control means 13 Retransmission frequency determination means 14 Wireless reception means 15 Channel scanning means 16 Carrier detection means 17 Wireless system identification code detection means 18 Equipment identification Code detection means

Claims (4)

In a wireless communication device having an individual communication function for specifying a partner wireless communication device and transmitting a wireless message,
Wireless transmission means for transmitting a wireless message;
Wireless receiving means for receiving a response message for transmission of the wireless message;
Partner reception cycle storage means for storing the intermittent reception cycle of the partner wireless communication device;
When the wireless reception unit cannot receive a response message for transmission of a wireless message to the counterpart wireless communication device, the number of retransmissions for retransmitting the radio message is increased as the intermittent reception cycle stored in the counterpart reception cycle storage unit increases. Means for determining the number of retransmissions so as to be reduced;
A wireless communication apparatus comprising control means for controlling each means. In a wireless communication device having both a communication function of specifying a partner wireless communication device and transmitting a wireless message and a broadcast communication function of continuously transmitting a wireless message without specifying a partner wireless communication device. 2. The wireless communication apparatus according to claim 1, wherein the number of times of continuous transmission of wireless telegrams during broadcast communication is determined in conjunction with the number of times of retransmission of sentences. In a wireless communication device that performs communication by specifying a communication group, when transmitting a wireless telegram, communication is performed from carrier detection means that detects whether the channel to be transmitted is available and signals received by the wireless reception means. A wireless system identification code detecting means for detecting a wireless system identification code designating a group, and when the carrier detecting means detects that there is a carrier in the channel to be transmitted, the wireless receiving means detects the radio wave of the channel. And when the wireless system identification code detection means detects a wireless system identification code indicating a communication group to which the wireless system identification code belongs, the wireless transmission is continued after the carrier detection means detects that there is no carrier. And a wireless telegram is transmitted on the channel, and the wireless sys- tem is transmitted. When the wireless system identification code indicating the communication group to which it belongs is not detected, the wireless transmission means is changed when the channel is changed and the carrier detection operation is performed by the carrier detection means. The wireless communication apparatus according to claim 1, wherein a wireless telegram is transmitted on the changed channel by activating the device. A delay time generating means that is generated based on a unique numerical value provided in the wireless communication device, and continues to receive the received channel, and after the carrier detecting means detects that there is no carrier, the wireless transmitting means is activated and wireless power is transmitted in the channel; 4. When transmitting a sentence, after detecting that there is no carrier, carrier detection is performed again after a delay time generated by the delay time generating means, and if there is no carrier, a radio telegram is transmitted on the channel. The wireless communication device described.

Images