JP4803832B2 - Patrol lamp flashing synchronization device - Google Patents

Description

  The present invention relates to a patrol lamp blinking synchronization device, and more particularly, to a patrol lamp blinking synchronization device that can easily perform blinking synchronization processing by wireless communication and that is less likely to cause the blinking timing to be shifted after the blinking synchronization processing.

There is a demand for synchronously blinking the patrol lamps of each vehicle when a plurality of vehicles to which the patrol lamps are attached are caused to travel at the same time by parade traveling, leading traveling, or the like. On the other hand, conventionally, there has been known a method of synchronizing blinking by simultaneously connecting a dedicated synchronization processing device and a patrol lamp of each vehicle by wiring and issuing a synchronization command from the synchronization processing device. Patent Document 1 discloses a configuration in which a wireless communication device is mounted on each of a plurality of vehicles to which a patrol lamp is attached, and blinking timing is transmitted by inter-vehicle communication to obtain blinking synchronization during traveling. Has been.
Japanese Utility Model Publication No. 4-61805

  However, in the method of simultaneously connecting the synchronization processing device and each patrol lamp by wiring, there is a problem that it takes time to connect and disconnect the wiring, and the number of steps for the synchronization work increases. Moreover, in the technique of Patent Document 1, if any trouble occurs in wireless communication between vehicles, there is a possibility that the flashing timing is shifted during traveling.

  An object of the present invention is to provide a patrol lamp blinking synchronization apparatus that solves the above-described problems of the prior art and that can easily perform blinking synchronization processing by wireless communication and that is less likely to cause the blinking timing to be shifted after the blinking synchronization processing. is there.

  In order to achieve the above object, the present invention provides a patrol lamp blinking synchronization device for synchronizing blinking of patrol lamps provided in a plurality of vehicles, a wireless transmitter for transmitting transmission data including an ID code, A receiver that is provided in each vehicle and that authenticates the ID code when receiving transmission data transmitted from the wireless transmitter, and when the ID code authentication is established, The first feature is that a blinking synchronization process for synchronizing blinking of the patrol lamp is executed.

  In addition, the patrol lamp is configured to blink at the same blinking cycle obtained by a crystal resonator, and the blinking synchronization processing is performed by using the start point of the blinking cycle after the authentication of the ID code is established. A second feature is that it is executed by shifting to a predetermined timing to visit.

  A third feature is that a synchronization start routine that starts at a predetermined cycle is provided, and the predetermined timing is a start point of the synchronization start routine that is visited first after authentication of the ID code is established.

  Furthermore, there is a fourth feature in that the flashing timing after the flashing synchronization process is maintained even when the main power of the vehicle is turned off.

  According to the first feature, a wireless transmitter that transmits transmission data including an ID code, and a receiver that is provided in each of a plurality of vehicles and that authenticates an ID code when receiving transmission data transmitted from the wireless transmitter. When the authentication is established, the flashing synchronization process for synchronizing the flashing of the patrol lamps between a plurality of vehicles is executed, so there is no need to connect the plurality of patrol lamps with wiring, and the wireless transmitter It is possible to synchronize the flashing of a plurality of patrol lamps only by operating the, so that the synchronization work becomes easy. In addition, by authenticating the ID code, only the receiver corresponding to the wireless transmitter can be operated.

  According to the second feature, the patrol lamp is configured to flash at the same flashing cycle obtained by the crystal resonator, and the flashing synchronization processing establishes the ID code authentication at the start point of the flashing cycle. Since it is executed by shifting it so as to match the predetermined timing that will be visited later, the communication between the receiver and the wireless transmitter only needs to be executed once. It is possible to continue the good synchronized flashing without any change.

  According to the third feature, there is provided a synchronization start routine that starts at a predetermined cycle, and the predetermined timing is the starting point of the synchronization start routine that comes first after authentication of the ID code is established. By using the starting point as a trigger for starting flashing, the flashing can be started reliably, and the initial deviation time of the flashing timing that occurs during the flashing synchronization process can be suppressed to the cycle time of the synchronous start routine at the maximum.

  According to the fourth feature, even if the main power of the vehicle is turned off, the blinking timing after the blinking synchronization process is maintained. For example, among a plurality of vehicles that have performed the synchronization process, some of the vehicles Even when the main power source needs to be turned off, the synchronized blinking can be resumed according to the held timing, and the usability of the patrol lamp can be improved.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic diagram showing a synchronization processing operation by a patrol lamp blinking synchronization device according to an embodiment of the present invention. The motorcycles 1a, 1b, and 1c according to the present embodiment are each provided with a pair of patrol lamps 2 on the left and right sides in the vehicle width direction. When the motorcycles 1a, 1b, and 1c are simultaneously run in various parade runnings, leading runnings, and the like, it is preferable that the patrol lamps 2 of the respective vehicles flash synchronously. However, although it is possible to unify the blinking cycle by making the patrol lamps 2 of each vehicle the same type, it is not easy to synchronize the blinking when individually starting blinking by a passenger's switch operation.

  Therefore, in the patrol lamp flashing synchronization device according to the present embodiment, a receiving unit 3 as a receiver having the receiving antenna 4 is attached to each vehicle, and transmission data transmitted from one wireless transmitter (remote control) 30 is received. Upon reception, the flashing synchronization processing of the patrol lamps 2 is performed at the same time within the receiving unit 3 of each vehicle. Thus, if the motorcycles 1a, 1b, and 1c are collectively stopped within the transmittable distance (for example, 10 m) of the wireless transmitter 30, the synchronization process of the patrol lamp 2 is completed only by operating the wireless transmitter 30. Thus, it is possible to obtain a state in which synchronous flashing is possible. The wireless transmitter 30 may be small (for example, 5 × 3 × 1 cm) with a built-in power supply. In this embodiment, a synchronization processing button 31 for executing synchronization processing and a power button 32 on the main body are provided. ing.

  FIG. 2 is a block diagram showing a configuration of a patrol lamp blinking synchronization device according to an embodiment of the present invention. The receiving unit 3 has a configuration in which a system that receives transmission data from the wireless transmitter 30 and a system that controls the lighting state of the patrol lamp 2 are contained in a single case. The receiving unit 3 obtains a reference frequency such as an RF module 5 for amplifying a received signal from the receiving antenna 4, a power supply circuit 8 for controlling power supply power from an in-vehicle power supply 11 introduced through a fuse 12, and a blinking cycle. And a microcomputer 6 for outputting a lighting command signal to the patrol lamp 2 based on information from the various switches, various relays, etc., a relay unit 10 for connecting and disconnecting a current supplied to the patrol lamp 2, and a lighting command from the microcomputer 6 A transistor 9 for connecting and disconnecting the relay unit 10 based on the signal is included. The receiving antenna 4 can be provided inside or outside the receiving unit 3.

  In the vicinity of the handle (not shown) of the motorcycle, a normal light switch 13 that switches the patrol lamp 2 to a constantly lit state, a flashing switch 14 that switches the patrol lamp 2 to a flashing state, and an ignition switch that switches on and off the main power of the motorcycle. 15 is provided, and the microcomputer 6 receives output signals from these switches. Transmission data from the wireless transmitter 30 is set so that it can be received when the ignition switch 15 is on, that is, when the main power of the motorcycle is on. At this time, the normal light switch 13 and the blinking switch 14 may be either on or off.

  The normal light switch 13 and the blinking switch 14 are configured to use an electric push switch and process the output signals from both switches by the microcomputer 6 so that the other is turned off when one is turned on. can do. According to this configuration, when the flashing switch 14 is pressed during normal lighting, the flashing state is switched to. When the normal lighting switch 13 is pressed during flashing, the flashing state is switched to the normal lighting state. You can set to turn off when you press the switch.

  The reception unit 3 receives the transmission data when the synchronization processing button 31 of the wireless transmitter 30 is operated and the transmission data is transmitted while the ignition switch 15 is turned on, and the ID code included in the transmission data is authenticated. I do. Then, when the authentication of the ID code is established, the blinking synchronization process of the patrol lamp 2 is executed. According to this configuration, it is not necessary to connect a plurality of patrol lamps with wiring, and the blinking synchronization process can be performed only by operating the buttons of the wireless transmitter 30. In addition, by authenticating the ID code, only a predetermined receiving unit corresponding to the wireless transmitter 30 can be operated.

  The form of the wireless transmitter 30 can be variously modified, and a test button for confirming whether or not the transmission radio wave from the wireless transmitter 30 has normally reached each receiving unit 3 may be provided. For example, if it is set so that the patrol lamp 2 is lit only for a predetermined time when the transmission radio wave from the test button is received, it is visually confirmed that the transmission radio wave from the radio transmitter 30 reaches all vehicles. Thus, the synchronization process can be completed with one time.

  FIG. 3 is a time chart schematically showing the blinking synchronization processing by the receiving unit. Pulse waveforms (a), (b), and (c) show changes in the lighting signal of the patrol lamp 2 in the motorcycles 1a, 1b, and 1c. In the blinking state, the patrol lamp 2 according to the present embodiment has an on (lighting) time h1 and an off (light-off) time h2 set to 350 msec, respectively, and has a blinking cycle of one cycle 700 msec.

  The patrol lamp of each vehicle shown in this time chart is blinking at different timings between the motorcycles 1a and 1b before the time t10, and is turned off in the motorcycle 1c. Then, when the synchronous processing command signal is transmitted at time t10, synchronous flashing is started for all three units at time t20. At this time, the blinking synchronization process is executed by shifting the timing at which lighting is first started after the receiving unit 3 authenticates the ID code, that is, the start point of the blinking cycle to match the time t20. After the synchronization process, the blinking operation is continued in the same cycle based on the timer included in each receiving unit 3, so that the synchronization process by wireless communication is only required once. Note that the start point of the blinking cycle may be set not to the point where the lighting state is started but to the point where the extinguishing state is started.

  In the motorcycle 1c shown in the pulse waveform (c), the patrol lamp 2 which has been turned off before reaching the time t10 is set to blink together with the synchronization process. Whether or not to actually start blinking may be set to be arbitrarily selected by a switch operation. Further, the blinking timing after the synchronization process is once performed is stored in the microcomputer 6 of each receiving unit 3 until the synchronization process is executed again even when the ignition switch 15 is turned off. Thus, for example, during a parade that runs with multiple vehicles, even if the convoys merge again after separation or some vehicles are switched to another standby vehicle, In this case, it is possible to prevent the flashing timing from shifting.

  FIG. 4 is a flowchart showing a flow of PL (patrol lamp) blinking synchronization processing executed in the microcomputer. FIG. 5 is a time chart showing the flow of processing when synchronization processing is performed on two receiving units a and b. When synchronization processing is performed in a plurality of receiving units, a slight deviation, that is, an “initial deviation time” occurs in the time from when the wireless transmitter is operated until synchronous blinking is started. Hereinafter, the initial deviation time that occurs from the operation of the wireless transmitter until the start of synchronous flashing will be described.

  First, referring to the flowchart of FIG. 4, the flow of the PL flashing synchronization process when the synchronization process is performed on one receiving unit is confirmed. In step S1, when the receiving unit 3 starts receiving transmission data from the wireless transmitter 30, it is determined in subsequent step S2 whether or not the microcomputer input is completed by receiving and demodulating the transmission data. If a negative determination is made in step S2, the process returns to step S1. On the other hand, if a positive determination is made, the process proceeds to step S3 to perform an authentication process for authenticating the ID code included in the transmission data from the wireless transmitter 30. . Next, in step S4, it is determined whether or not a synchronization start permission flag that is established at the end of the authentication process is established. If a negative determination is made, the process returns to step S1, while if an affirmative determination is made, the process proceeds to step S5.

  In step S5, it is determined whether or not it is the start timing of the synchronous start routine. If a negative determination is made, a standby process is performed in step S6 and the process returns to step S5. On the other hand, if an affirmative determination is made in step S5, a PL flashing signal is output in step S7, PL flashing is started in step S8, and a series of PL flashing synchronization processing ends.

  Next, reference is made to the time chart of FIG. Hereinafter, the number of steps is described in the portion corresponding to each step shown in FIG. First, paying attention to the receiving unit a, when the synchronization processing button 31 (see FIG. 1) of the wireless transmitter 30 is pressed and the transmission data Tx is transmitted at time t0 (step S1), the receiving unit 3 at time t1. Starts reception, demodulation, and microcomputer input Ea of transmission data. When the transmission data reception, demodulation, and microcomputer input Ea are completed at time t2 (step S2), an authentication process Fa for authenticating the ID code included in the transmission data is executed (step S3).

  The synchronous start permission flag that permits the start of synchronous blinking is established at the same time as the authentication process Fa ends at time t3 (step S4). However, the receiving unit 3 does not turn on the PL blinking signal immediately after reaching the time t3, but waits for the next starting point of the synchronous start routine that starts at a predetermined cycle, and then turns on the PL blinking signal. To do. As described above, in this embodiment, by using the start point of the synchronous start routine as a trigger for blinking, even when a plurality of flags by other work are simultaneously established in the microcomputer, the other work is not interfered with. It is configured to start blinking with certainty. Then, after the synchronization start permission flag is established at the time t3, the receiving unit a waits for the waiting time Ga until the time t5 when the starting point of the next synchronization start routine comes (steps S5 and S6), and then PL The blinking signal is turned on (steps S7 and S8). In the present embodiment, the period of the synchronization start routine is set to 2.5 msec.

  Next, pay attention to the receiving unit b. The reception, demodulation, and microcomputer input Eb of the transmission data are executed at times t1 to t2, as with the reception unit a. Since this process does not involve drive parts and software processing, there is no difference in processing time between the receiving unit a and the receiving unit b. On the other hand, in the authentication process Fb started from the time t2, a slight deviation occurs between reception units of the same type due to variations in clocks based on the crystal resonator 7. In FIG. 5, the authentication process in the receiving unit a is indicated by the minimum value Fa, and the authentication process in the receiving unit b is indicated by the maximum value Fb. The difference between Fa and Fb (time t3 to t4) is the maximum deviation time A2 by the authentication process, and is calculated as 0.00024 msec in this embodiment. Since this value is very small, it can be ignored in the examination of the initial deviation time.

  Subsequently, the synchronization start permission flag in the receiving unit b is established at time t4 when the authentication process Fb ends. As a result, the receiving unit b is in a state in which the PL flashing signal can be switched on. However, the starting point of the synchronous start routine of the receiving unit b is shifted by h3 with respect to the starting point of the synchronous start routine of the receiving unit a, so that the receiving unit b becomes the starting point of the next synchronous start routine. The PL flashing signal is turned on after waiting for the waiting time Gb until reaching time t6.

  From the above, the difference between the time when the receiving unit a turns on the PL blinking signal and the time when the receiving unit b turns on the PL blinking signal is the time t5 to t6, and the maximum value of the deviation time A3 is the synchronous value. It becomes the same value as the cycle of the start routine. That is, in this embodiment, the initial deviation time that occurs with the synchronization process is 2.5 msec at the maximum.

  Here, the maximum deviation time after a predetermined time has elapsed after the blinking synchronization processing is examined. The maximum deviation time (D) after a predetermined time includes the initial deviation time (A) described above, the accumulated deviation time (B) after a predetermined time due to individual differences of crystal resonators, and the mechanical variation time (C ) And the total value. The accumulated deviation time due to individual differences of crystal resonators is a value accumulated with the passage of time, and here, the maximum deviation time after 3 hours from the synchronization processing is calculated.

  In the present embodiment, the initial deviation time A is 2.5 msec, the accumulated deviation time B after 3 hours due to individual differences of the crystal resonators is 32.375 msec, and the mechanical variation time C of the relay is 2 msec. When these are summed, D = A + B + C = 36.875 msec. That is, even if 3 hours have elapsed since the synchronization processing, the maximum deviation time D of the patrol lamp remains at 36.875 msec. This maximum deviation time is sufficiently small with respect to the blinking cycle 700 msec of the patrol lamp 2 in the present embodiment, so that it is understood that no obvious blink deviation occurs even after 3 hours have passed since the synchronization processing.

  As described above, according to the patrol lamp flashing synchronization device according to the present invention, when a reception unit is mounted on each of a plurality of vehicles and transmission data from a wireless transmitter is received, authentication of an ID code included in the transmission data is performed. Since it is configured to synchronize the blinking of the patrol lamp after the operation, the blinking can be synchronized only by transmitting the transmission data from the wireless transmitter. Further, by authenticating the ID code, only a predetermined receiving unit corresponding to the wireless transmitter is operated, and a reliable blinking synchronization process can be executed.

  The form of the motorcycle, the number and shape of the patrol lamp, the setting value such as the blinking period of the patrol lamp in the receiving unit and the start period of the synchronous start routine, the form of the receiving unit and the wireless transmitter are not limited to the above embodiment, Various modifications are possible. For example, the reception unit may have a configuration in which a transmission data reception unit and a patrol lamp control unit are housed in separate cases. The patrol lamp flashing synchronization device can be applied to various vehicles such as a four-wheeled vehicle, and can be configured to perform flashing synchronization of various display devices having different shapes and structures.

It is a schematic diagram which shows the synchronous process operation | work by the patrol lamp blink synchronization apparatus which concerns on one Embodiment of this invention. It is a block diagram which shows the structure of the patrol lamp blink synchronization apparatus which concerns on one Embodiment of this invention. It is the time chart which showed typically the synchronous processing by the receiving unit. It is a flowchart which shows the flow of PL blink synchronous processing performed within a microcomputer. It is a time chart which shows the flow of a process when a synchronous process is performed with respect to two receiving units.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1a, 1b, 1c ... Motorcycle (vehicle), 2 ... Patrol lamp, 3 ... Reception unit (receiver), 4 ... Reception antenna, 6 ... Microcomputer, 7 ... Crystal oscillator, 10 ... Relay unit, 13 ... Normal light Switch 14 flashing switch 15 ignition switch (main power switch) 30 radio transmitter 31 synchronization processing button

Claims (3)

In the patrol lamp flashing synchronization device for synchronizing the flashing of the patrol lamp (2) provided in the plurality of vehicles (1a, 1b, 1c) ,
A wireless transmitter (30) for transmitting transmission data including an ID code;
A receiver (3) that is provided in each of the plurality of vehicles (1a, 1b, 1c) , and that authenticates the ID code when receiving transmission data transmitted from the wireless transmitter (30) ;
When the authentication of the ID code is established , it is configured to execute a flashing synchronization process for synchronizing the flashing of the patrol lamp (2) between the plurality of vehicles (1a, 1b, 1c) ,
The patrol lamp (2) is configured to flash at the same flashing cycle obtained by the crystal resonator (7),
The patrol lamp flashing synchronization device is executed by shifting the flashing synchronization process so that the start point of the flashing cycle is matched with a predetermined timing to be visited after the ID code authentication is established . It has a synchronous start routine that starts at a predetermined cycle,
The patrol lamp blinking synchronization apparatus according to claim 1 , wherein the predetermined timing is a starting point of the synchronization start routine that is first visited after the authentication of the ID code is established. The patrol lamp blinking synchronization apparatus according to claim 1 or 2 , wherein the blinking timing after the blinking synchronization process is maintained even if the main power of the vehicle is turned off.

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