JPH03136497A - Communication equipment for vehicle - Google Patents

Abstract

PURPOSE:To speedily drive a terminal equipment corresponding to an operated operation part by preferentially calling a terminal unit equipped with the terminal equipment related to the operated operation part. CONSTITUTION:When a collecting means 1 collects information concerning the operations of the respective operation parts provided corresponding to the plural terminal equipments, a calling means 3 preferentially calls a terminal unit 2 equipped with the terminal equipment corresponding to this operated operation part out of the plural terminal equipments. Accordingly, when calling the terminal unit 2 equipped with the terminal equipment corresponding to the operated operation part, the terminal equipment is driven. Thus, the terminal equipment corresponding to the operated operation part can be speedily driven.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention provides a vehicle in which information related to the operation of a large number of operation parts is transmitted through a small number of connection lines to drive the corresponding terminal device. The present invention relates to a communication device for a vehicle, and particularly to a communication device for a vehicle that drives a terminal device as quickly as possible without corresponding to an operated operation part.

(Prior Art) In recent years, the use of electronics in vehicles has been promoted. With the advancement of electronics, various so-called multiplex communication systems have been developed that are capable of transmitting information related to the operations of a large number of operating units through a small number of connection lines.

As such a conventional multiplex communication system, the one shown in FIG. 6 is known.

As shown in FIG. 6, the vehicle 1000 has an engine room section 1.
101, dash section 1102, and instrument panel section 1
103 and a trunk room section 1104. The engine room section 1101 is provided with a multiplex transmission module 14o1, the dash section 1102 is provided with a multiplex transmission module 1402, and the instrument panel section 1
103 is provided with a multiplex transmission module 1403, and the trunk room section 1104 is provided with a multiplex transmission module 140.
4 are provided respectively.

Multiplex transmission module 1401 is connected to multiplex transmission line 1200 and switched load feed line 1300. This multiplex transmission module 1401 controls the right front lamp group 1501 and the left front lamp group 1502 according to control data on the multiplex transmission line 1200. Further, the multiplex transmission module 1401 superimposes a group of signals from the AT position switch group 1503 and the AT shift sensor group 1504 onto the signal on the multiplex transmission line 1200 and transmits the signal.

Similarly, the multiplex transmission module 1402 includes a light switch group 1505 consisting of a plurality of light switches, and a dash peripheral switch group 15 provided around the dash portion.
Controls 06.

A multiplex transmission module 1403 provided in the instrument panel section 1103 controls an instrument lamp group 1507 consisting of a plurality of lamps.

The multiplex transmission module 1404 provided to the trunk room section 1104 has a right trunk room load group 1508,
The left trunk room load group 1509 is controlled.

As described above, in the conventional multiplex communication system, for example, a multiplex transmission module 1401 installed in the engine compartment 1101 controls the lamp groups on both sides of the vehicle, that is, the right front lamp group 1501 and the left front lamp group 1502. Therefore, if a failure occurs in this multiplex transmission module 1401, it becomes impossible to drive both front lamp groups 1501 and 1502.

Therefore, it is conceivable to perform control for each front lamp group. That is, by providing a multiplex transmission module for controlling the right front lamp group 1501 and a multiplex transmission module for controlling the left front lamp group 1502, each front lamp group can be controlled separately and independently. has been proposed. In this way, a multiplex transmission module is provided for each of the terminal device on the left side of the vehicle and the terminal device on the right side of the vehicle, and each of these multiplex transmission modules is built into the housing of the corresponding terminal device. If you configure it like this,
It can be molded with a single housing, and the number of connection wires or harnesses between the terminal device and the operating section can be further reduced.

Furthermore, as described above, among the pair of multiplex transmission modules corresponding to the terminal device located on the left side of the vehicle and the terminal device located on the right side of the vehicle, even if one multiplex transmission module fails, the other multiplex transmission module will fail. The terminal device can be driven reliably.

(Problem to be Solved by the Invention) However, in such conventional devices, the number of multiplex transmission modules that are slave stations increases, and the multiplex transmission modules are sequentially polled according to a preset calling order to receive each multiplex transmission module. Communication is performed between the transmission module and the master station. Therefore, a predetermined time is required from polling the multiplex transmission module located at the head to polling the multiplex transmission module located at the end.

For example, as shown in FIG. 5(A), when information regarding the operation of the operation unit operated at time t1 is collected from the slave station 200 located near the beginning of the call, the terminal device and device corresponding to this operation unit are collected. If the slave station 600 with
The slave station 600 is called at time t6 when the communication with the slave station 600 ends. In this way, there is a time delay between when the operating section is operated and when the corresponding terminal device is driven, leaving room for improvement.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a communication device for a vehicle that drives a terminal device corresponding to an operated operation part as quickly as possible.

[Structure of the invention] (Means for solving the problem) The means provided by the present invention to achieve the above object are as follows.
As shown in the figure, there is a collection means 1 for collecting information related to the operation of each operation unit provided corresponding to a plurality of terminal devices, and a plurality of collecting means 1 having one or more terminal devices among the plurality of terminal devices. When the terminal unit 2 and the collecting means 1 collect information related to the operation of the operating section, priority is given to the terminal unit 2 having the terminal device associated with the operated operating section among the plurality of terminal devices. a calling means 3 for calling;
When the terminal unit 2 having a terminal device corresponding to the operated operation section is called by the calling means 3, a driving means 4 is provided for driving the corresponding terminal device.

(Operation) In the present invention, when the collecting means 1 collects information related to the operation of each operation section provided corresponding to a plurality of terminal devices, the information on the operation section corresponding to the operated operation section among the plurality of terminal devices is collected. A terminal unit 2 having a terminal device is called with priority. Therefore, when the terminal unit 2 having a terminal device corresponding to the operated operation section is called up, the corresponding terminal device is driven, so that the terminal device corresponding to the operated operation section can be quickly driven. .

(Embodiment) An embodiment of the present invention will be described in detail below with reference to the drawings.

First, the overall configuration of the vehicle communication device according to the present invention will be explained with reference to FIGS. 2 and 3.

A plurality of slave stations 100, 200, 200,
300, 400, 500, 550°600,..., 9
00 are connected.

The master station 10 includes a communication unit 11 for communicating with each of the plurality of slave stations by polling each of the slave stations;
It is comprised of a logic section 12 for controlling the corresponding terminal device based on information related to the operation of the operating section collected via the multiplex transmission line LL.

Here, when the communication unit 11 calls each slave station, the calling order is 5th.
The settings are as shown in Figure (B). That is, immediately after the slave station 100 is called, the operation units of the slave station 100, which correspond to the small lamp switch 102, headlamp switch 103, turn signal switch 104, hazard switch 105, and horn switch 106, are activated. The slave stations 300, 400, 800, and 900 having terminal devices are called in sequence. Similarly, immediately after the slave station 200 is called, the slave station 500, 550, 600, 70, which has a terminal device corresponding to the switches 205, 206, 207, 208, which are the operation units of the slave station 200, is called.
0 are called sequentially.

A slave station 100 is arranged near the driver's seat of the vehicle 20. This slave station 100 includes a communication section 101 for communicating with the master station 10, and a plurality of operation sections.

To explain the plurality of operation parts specifically, there is a small lamp switch 102 for turning on or off the meter illumination lamp, a headlamp switch 103 for turning off or turning on the headlamp, and a small lamp switch 103 for turning on or off the headlamp. Turn signal switch 104 for indicating right turn
A hazard switch 105 for indicating that the vehicle is parked, and a horn switch 106 are each connected to the communication unit 101.

A slave station 200 is arranged near the driver's seat of the vehicle 20. This slave station 200 includes a communication section 201 for communicating with the master station 10, and a plurality of operation sections. To explain the plurality of operation parts in detail, a switch 205 for driving the windshield on the passenger side, a switch 206 for driving the windshield on the right side of the rear seat, and a switch 206 for driving the windshield on the left side of the rear seat. A switch 207 for locking the door and a switch 208 for locking the door are each connected to the communication unit 201.

A slave station 300 is provided in a housing 30 disposed on the front left side of the vehicle 20. This slave station 300 is the master station 10
It is comprised of a communication unit 301 for communicating with and a plurality of terminal devices.

That is, a small lamp 302 provided on the front left side of the vehicle.
, a headlamp 303, and a turn signal lamp 30
4 and a horn 305 are each connected to the communication section 301.

A slave station 400 is provided in a housing 40 disposed on the front right side of the vehicle 20. This slave station 400 is the master station 10
It consists of a communication unit 401 for communicating with the vehicle, and a plurality of terminal devices provided on the front right side of the vehicle. That is, a small lamp 402, a headlamp 403, a turn signal lamp 404, and a horn 405 are each connected to the communication section 401.

A slave station 50 is installed in a door 50 provided on the passenger side of the vehicle 20.
0 is placed. This slave station 500 includes a communication section 501 for communicating with the master station 10, and a door 5 on the passenger seat side.
It consists of a plurality of terminal devices provided at 0 and a corresponding operation section. That is, a power window motor 502 and a door lock motor 5 are used as a plurality of terminal devices.
03 is connected to the communication section 501, and a switch 504, which is an operation section for driving the power window motor 502, is connected to the communication section 501.

A slave station 55 is installed on the door 55 provided on the driver's seat side of the vehicle 20.
0 is placed. This slave station 550 includes a communication section 551 for communicating with the master station 10, and a door 5 on the driver's seat side.
5 and a corresponding operation section. That is, a power window motor 552 and a door lock motor 5 are used as a plurality of terminal devices.
53 is connected to the communication section 551, and a switch 554, which is an operation section for driving the power window motor 552, is connected to the communication section 551.

A slave station 60 is installed in a door 60 provided on the left side of the rear seat of the vehicle 20.
0 is placed. This slave station 600 includes a communication section 601 for communicating with the master station 10, a plurality of terminal devices provided on the door 60, and a corresponding operation section. That is, a power window motor 602 as a terminal device and a door lock motor 603 are connected to the communication unit 6.
Connected to 01. Also power window motor 60
A switch 604, which is an operation section for driving 2, is connected to the communication section 601.

A slave station 70 is installed in a door 70 provided on the right side of the rear seat of the vehicle 20.
0 is placed. This slave station 700 is composed of a communication section 701 for communicating with the master station 10, a plurality of terminal devices provided on the door 70, and a corresponding operation section. That is, a power window motor 702 and a door lock motor 703 are each connected to the communication unit 701 as a plurality of terminal devices. Further, a switch 704, which is an operation unit for driving the power window motor 702, is connected to the communication unit 701.

A slave station 800 is arranged in a housing 80 provided on the rear left side of the vehicle 20. This slave station 800 is the master station 10
It is comprised of a communication unit 801 for communicating with the housing 80, and a plurality of terminal devices provided in the housing 80. That is, the tail lamp 802 and the turn signal lamp 8
03 and the license lamp 804 are respectively connected to the communication section 8.
Connected to 01.

A slave station 900 is arranged in a housing 90 provided on the rear right side of the vehicle 20. This slave station 900 is the master station 10
It consists of a communication unit 901 for communicating with the housing 90, and a plurality of terminal devices provided in the housing 90. That is, the tail lamp 902 and the turn signal lamp 9
03 and the license lamp 904 are respectively connected to the communication section 9.
Connected to 01.

Next, with reference to FIG. 4, a data format used in the basic operation of the vehicle communication device shown in FIG. 3 will be explained.

A plurality of slave stations 100, 200, 300, 400°500.
550,600. ..., 900 has a unique address set in advance, and by specifying this address, the corresponding slave station is called. That is,
Each slave station monitors the address information transmitted from the master station 1o, and when it matches its own address, it determines that it has received a call and returns information DFb, which will be explained later, to the master station 1o.

This allows communication to take place between the master station 10 and the called slave station. As shown in FIG. 4(C), the address 12 + t 1 , t , l + 1 + i
A data format DF is set for each slave station. Each of these data formats DF is formed from information DFa to be transmitted from the master station 10 to the corresponding slave station, and information DFb to be transmitted from the slave station to the master station 10.

Next, the data format DF for the slave station with address i
I will explain on behalf of.

As shown in FIG. 4(B), the information DFa includes a 2-bit header signal HD indicating the start of data, and 6-bit address bits aQ, al, a2 . ..., a5, address information ADS, 1-bit sleeve bit SLP used to stop the slave station, 1-bit parity bit AP, and 16-bit data bits rO, r
l, r2. . . r15, and a 1-bit parity pit Pr. Information DFb is 16-bit data bits tQ, tl.

t2. ..., operation information Tx consisting of t15, 1-bit parity bit pt, and 1-bit error bit C
It is composed of E. Further, a switching time S for switching the communication line is set between the information DFa and the information DFb, and no communication is performed during this switching time S.

Further, unit bits forming various types of information are generated by a pulse width modulation method as shown in FIG. 4(A), and the bit time Tb of each unit bit is set to, for example, 70 μsec. Further, the data time Tf of each data format DF is set to, for example, 3.5 msec.

Next, the basic operation, for example, the operation when the small lamp switch 102 of the slave station 100 is turned on will be explained.

First, the master station 10 collects information related to the operation by collecting the header signal HD, the address information ADS of the slave station 100, the sleeve bit SLP, the parity pit AP, and the drive information Rx.
The slave station 10 sends information DFa consisting of
Send to 0. At this time, the respective data bits rO, rl, r2 . ..., r15 is set to the logical value rOJ, and the parity pit Pr
is set to logical value "1".

Next, the slave station 100 receives the operation information T after the switching time S has elapsed.
It transmits information DFb consisting of x, parity bit pt, and error bit CE to master station 10. At this time, if the information related to the operation of the small lamp switch 102 corresponds to data bit 10, this data bit to is set to the logical value "0", and other data bits tl
, t2°t3. ..., sets t15 to logical value "1". Further, the parity bit pt and the error bit CE are each set to logical value "0".

Next, when the master station 10 receives the information DFb from the slave station 100, it decodes the operation information Tx, and since the data bit to is the logical value rOJ, the small lamp switch 102
is determined to have been turned on. As a result, the master station 10
are the corresponding terminal devices, that is, the small lamp 302 of the slave station 300, the small lamp 402 of the slave station 400, the tail lamp 802 of the slave station 800, and the license lamp 804.
Then, it is determined that the tail lamp 902 and license lamp 904 of the slave station 900 should be turned on.

The master station 10 transmits information DFa including drive information Rx indicating that the small lamp 302 is to be turned on to the slave station 300. At this time, for example, if data bit rQ is assigned corresponding to small lamp 302, this data bit "0" is set to the logical value "0", and other data bits r1, r2 . ..., set r15 to logical value "1"
Set to .

When the slave station 300 receives the information DFa from the master station 10, it decodes the drive information Rx, and when it detects that only the data bit "0" is the logical value "0", the small lamp 30
2 is determined to be the lighting command. As a result, slave station 3
00 lights up the small lamp 302. Subsequently, when the switching time S has elapsed after receiving the information DFa from the master station 10, the slave station 300 transmits the information DFb to the master station 1o.

At this time, since the slave station 300 does not have an operation section, the data bits tQ, tl, t2. ..., t15 is set to logical value "1"
”.

Similarly, the master station 10 lights up the small lamp 402 by transmitting information DFa to the slave station 400 indicating that the small lamp 402 should be turned on.

Similarly, the master station 10 transmits information DFa to the effect that the tail lamp 802 and the license lamp 804 are to be turned on to the slave station 800, and information DFa to the effect that the tail lamp 902 and the license lamp 904 are to be turned on to the slave station 900. By sending the tail lamp 8
02, the license lamp 804, tail lamp 902, and license lamp 904 are turned on, respectively.

Next, the operation when the switch 207 is operated to lower the rear seat left window glass at time T5 shown in FIG. 5(B) will be described.

First, the master station 10 sends all data bits "0°rl r2.
... Sends information DFa including drive information Rx in which rl5 has a logical value of "0".

As a result, when the switching time S has elapsed after receiving the information DFa, the slave station 200 transmits information DFb including operation information Tx indicating that the switch 207 has been operated to the master station 10.

At this time, if information regarding the operation of switch 207 is assigned in correspondence with data bit t7, only this data bit t7 is set to the logical value "0", and the other data bits are set to the logical value "1". ” is set.

When the master station 10 receives the information DFb from the slave station 200, it decodes the operation information Tx, and the data bit t7 is set to the logical value r.
When it is detected that it is OJ, it is determined that the switch 207 has been operated.

Next, the master station 10 calls the slave station 600 at time T8 when communication with the slave stations 500 and 550 is completed.

As a result, the master station 10 transmits to the slave station 600 information DFa including drive information Rx indicating that the windshield on the left side of the rear seat is lowered. At this time, if the drive information for lowering the rear seat left window glass is assigned corresponding to the data bit ()rl, this data bit "1" is set to the logical value "0".
, and set other data bits to logical value "1".

When the slave station 600 receives information DFa from the parent 10,
The drive information Rx is decoded, and the data bit r1 is set to the logical value "0".
”, the power window motor 60
2 to lower the windshield on the left side of the rear seat.

Next, when the switching time S has elapsed after receiving the information DFa from the master station 10, the slave station 600 transmits to the master station 10 information DFb including operation information TRx in which all data bits have a logical value of "1". .

As described above, when the master station 10 collects information related to the operation of the operation section, it calls a slave station having a terminal device associated with the operation section and drives the corresponding terminal device.

Next, another embodiment of the present invention will be described with reference to FIG. 5(C).

In this embodiment, when information related to the operation of an operating section is collected, the slave station having the terminal device corresponding to the operated operating section is immediately called, thereby quickly driving the corresponding terminal device. It is characterized by

Specifically, when the master station 10 collects information related to the operation of the operation unit, it has a means for setting the slave station having the terminal device corresponding to the operation unit as the next call priority and immediately calling it. ing. For example, as shown in FIG. 5(C), time T
When it is determined in step 5 that the switch 207 has been operated by communicating with the slave station 2°O, the slave station 600 having the power window motor 602 corresponding to this switch 207 is immediately called at time T6. As a result, the power window motor 602 can be immediately driven to lower the rear seat left window glass. Therefore, the operation delay time of the terminal device corresponding to the operated operation section can be further improved.

[Effects of the Invention] As described above, according to the present invention, since the terminal unit having the terminal device associated with the operated operation unit is called with priority, the terminal unit corresponding to the operated operation unit is called. The terminal device can be driven quickly.

[Brief explanation of the drawing]

FIG. 1 is a complaint correspondence diagram, FIG. 2 is a layout diagram of each part of a vehicle communication device according to the present invention, FIG. 3 is a block diagram showing the overall configuration of a vehicle communication device according to the present invention, and FIG. is an explanatory diagram showing an example of the data format set when a master station polls a slave station, Figure 5 is an explanatory diagram showing the calling order of each slave station, and Figure 6 is a block diagram showing a conventional example. It is a diagram.

Claims (1)

[Scope of Claims] A collection means for collecting information related to the operation of each operation unit provided corresponding to a plurality of terminal devices, and a plurality of collecting means having one or more terminal devices among the plurality of terminal devices. a terminal unit; and a calling unit that, when the collecting unit collects information related to the operation of the operating unit, calls a terminal unit having a terminal unit associated with the operated operating unit from among the plurality of terminal devices with priority. and when a terminal unit having a terminal device corresponding to the operated operation section is called by the calling means,
A vehicle communication device comprising: a drive means for driving a corresponding terminal device;