JP3236230B2 - Control method of external controlled system by wireless communication - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an external controlled system by wireless communication in which control information is transmitted between a control computer and an external controlled system by wireless communication to control the controlled system. Related to the control method.

[0002]

2. Description of the Related Art Conventionally, when a computer controls an external controlled system, control information is transmitted by wire using an electric wire or an optical cable or wirelessly without using an electric wire or an optical cable.

[0003]

However, while transmission by wire is effective for simplifying the circuit and compensating for a highly reliable control operation, on the other hand, the distance between the computer and the external controlled system is restricted. However, there is a trouble in that wiring and connection are troublesome, and when the controlled system is a moving body, there is a drawback that a control failure is easily caused by a wired connection. In addition, wireless communication has a feature that there is no restriction on the distance and wiring and connection are not required, but there is a disadvantage that a control signal cannot be transmitted unless a communication control program is incorporated in the control program. The present invention solves the above-mentioned drawbacks and provides a control method capable of transmitting an input / output control signal to a target external controlled system without making a control program for wireless communication and performing the control reliably. Is the task.

[0004]

According to the present invention, there is provided a control method of an external controlled system by wireless communication according to the present invention, which employs the following configuration. (1) In a control method of an external controlled system by wireless communication in which an input / output signal of the controlled system is transmitted by wireless communication between the control computer and an external controlled system to control the controlled system, The control computer is
It has a communication means with a range and uses a general-purpose programming language.
Read / write the transfer area with the control program
Alone to issue a control command to the controlled system.
The communication means can transmit and receive in a specific frequency band,
As well as transferring the information as
It has a transfer area that updates when the force signal changes.
You. The controlled system includes a communication unit having a transfer area, and
Transfer the detection signal by the knowledge means to the control computer
As a result, according to the control program of the control computer
The communication means includes a control computer.
Can transmit and receive in the same frequency band as the
Information at every specific time, and
It has a transfer area that updates when the signal changes.
You. (2) When the communication means of the control computer has a plurality of unique identification information, and the communication means of a plurality of external controlled systems share the plurality of identification information and select a plurality of information, a plurality of external objects are selected. Selective control of the control system is performed. (3) The external controlled system is equipped with control means suitable for realizing the control operation according to the control program. (4) The control means provided in the external controlled system changes according to a change in the control program. (5) The external communication means of the controlled system has a function of storing the control information of the control program and controlling the controlled system based on the stored information.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a control system for an external controlled system by wireless communication according to the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 2, the control system according to the present invention comprises a control computer 1 having communication means 2 capable of transmitting and receiving data in a specific frequency band. A communication means 4 capable of transmitting and receiving in the same frequency band as that described above is provided, and the external controlled system is controlled by mutually communicating in the frequency band of the specified low power radio station.

Although various types of control computer 1 can be used, it is convenient and economical to use a general-purpose computer having a multifunctional function and a high penetration rate. As shown in FIG. 1, the computer 1 has a language processing means 5 for processing a general-purpose programming language, for example, a basic language. The language processing means 5 controls the external controlled system 3 in the basic language described above. In addition to processing the control program 6 created so as to control, the printed circuit board 7 is attached to the expansion slot from the general-purpose bus as shown in FIG.
The communication means 2 having the identification information unique to the printed circuit board 7 and the information transfer area 8 are formed.
And the language processing means 5 are connected by a bus 9.

[0008] The external controlled system 3 is a machine, a device, a toy, which can be remotely controlled by wireless communication, for example,
Digital home appliances, factory automation machines, home use
Robots and others are the targets.
For example, in the case of the traveling body shown in FIG. 2, a wheel as the traveling unit 10, a motor as the control unit 11 for controlling the traveling unit 10, a sensor as the detection unit 12, and a printed circuit board 13 are mounted. The printed circuit board 13 comprises the communication means 4 having individual identification information, the information transfer area 14 and the input / output control signal 15 for the control means 11, and the input / output control signal 15 and the communication means 4 is connected by a bus 16. When it is necessary to change the control contents, the external controlled system 3 replaces the control means 11 with one that is suitable for the control contents, or additionally installs the control means 11. Accordingly, a new program is naturally created in the control program 6.

[0009] with the computer 1 side communication means 2 and the external of the controlled system 3 side communication means 4 of the is composed of proprietary software as firmware, this firmware, was determined to send and receive each other specific Transmission and reception are performed in the frequency band. If there is an error in transmission, retransmission processing is performed, and if a fatal communication state occurs, processing for abnormally terminating transmission and reception is performed. The communication means 2 and the communication means 4 have an area capable of sufficiently storing control information and a processing means.
When the control information is transferred between the communication means 2 and the communication means 4, processing and processing for executing control based on the stored information are performed. In other words, communication means include
The firmware allows the control program to easily control information.
Software so that information can be read and written in the transfer area 8.
Provides functional instructions for module specification. Further, the communication means 2 and the communication means 4 are provided with a timer based on the clock frequency of the CPU of each other, so that the cycle of updating the data in the transfer area 8 and the transfer area 14 is completed within a specific time including communication. To program. Then, in the initial state of the control, the computer 1 recognizes that the unique identification information is transmitted from the controlled system 3, and if the identification information is transmitted normally, the communication means 2 and the communication means 4 communicate with each other. Data transmission and reception between the transfer area 8 and the transfer area 14 are started. By doing so, the transfer area 8 and the transfer area 14
Data exchange is performed to transfer information at a specific time interval between the two. The specific time at this time is for compensating the mutual data update time, and the polling of the input / output signal 15 based on the control program 6 is performed by compensating for the delay of the data update time. It is suitable for. Further, if the communication means 2 of the computer 1 has a plurality of unique identification information and the plurality of controlled systems 3 share the plurality of identification information, a plurality of the This is effective for controlling the controlled system 3 and is also useful for giving and receiving control rights and maintaining confidentiality in the controlled system.

If the control method is configured as shown in the above-described embodiment, a control program using the general-purpose programming language 5 can be used.
In the system 6, the control information is read and written to the transfer area 8 of the communication means 2 based on the control program 6 without creating a program for wireless communication. By transmitting the signal to the transfer area 14 of the communication means 4 and activating the control means 11 by the input / output control signal 15, the control of the external controlled system 3 can be reliably performed by wireless communication.

[0011]

[Experimental example] As shown in FIG.
The motor of the control means 11 is linked to the wheels of the traveling means 10, and a sensor as the detection means 12 is provided in the controlled system 3. Then, a rotation command of the control means 11 is issued by transmission and reception between the transfer area 8 of the communication means 2 of the computer 1 and the transfer area 14 of the communication means 4 of the controlled system 3, and the detection means 12 detects an obstacle. If the control program 6 is created and placed so as to issue a command to stop the control means 11 in response to the signal, the control information is wirelessly transmitted from the computer 1 to the controlled system 3 so that the controlled system The control of stopping the running when the running body of No. 3 was run and obstacles hindered running was able to be surely performed.

[0012]

According to the first aspect of the present invention, (1) communication control for wireless communication is performed by a control computer.
Communication between the communication means of the
Therefore, create a communication control program in the control program.
Need not be done. Therefore, a general-purpose programming language
In the control program used, simply transfer to the transfer area of the communication means.
Just by reading and writing the control information,
Input / output by transmitting to the transfer area of the communication means in the controlled system
The control means is activated by the signal to control the external controlled system.
It can be reliably performed by wireless communication. That
The control of the control means of the external controlled system is controlled by the control computer.
Data in the external control system
Must have a computer for controlling the control means.
No need for the user to easily develop external control systems
Can be. (2) Since it is wireless communication, there is no restriction on distance, and wiring and
The work of connection is unnecessary, and it is particularly effective for controlling a controlled system that moves because it is not subject to a control disturbance by wire. (3) Since a control program can be created using a general-purpose programming language, even a novice having no knowledge of communication control can freely control a controlled system. (4) A computer that is used only for altering characters, symbols, graphics, images, etc. on the screen becomes a controller that controls the remote system remotely in real time with its own program. It leads to the improvement of engineering education. (5) If a controlled system is manufactured by providing a control means and a detection means that are compatible with the control program, the creation of a product by the ingenuity is promoted, which greatly contributes to the study of the mechanism and the learning of the manufacturing technique. (6) Even if there is no basic knowledge for controlling the control means and the detection means of the controlled system, a control program can be created according to the function instructions of the software module specification. According to the second aspect of the present invention, if one computer is used, it is possible to simultaneously perform different controls of a plurality of external controlled systems, which is economical and enables cooperative operation between the controlled systems. It is also useful for giving and receiving control and maintaining confidentiality. Advantageous Effects of Invention Even without basic knowledge for controlling a controlled system, a control program can be created according to a function instruction of a software module specification, and a control operation faithful to the program can be reliably performed. I can make it. According to the fourth aspect, the control conditions of the same controlled system can be converted so that the control can be provided with flexibility and diversity. According to the fifth aspect of the present invention, in the repetition of the same control operation, control can be performed based on information stored in the controlled system. In this case, malfunction due to communication processing with the computer is eliminated, control reliability is increased, and control is improved. Simplify.

[Brief description of the drawings]

FIG. 1 is a principle diagram showing a configuration of a control method of an external controlled system by wireless communication according to the present invention.

FIG. 2 is a schematic diagram showing the embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 control computer 2 communication means 3 external controlled system 4 communication means 5 language processing means 8 transfer area 11 control means 14 transfer area

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) G05B 19/18-19/46 B25J 3/00-3/10 B25J 9/10-9/22 B25J 13/00-13 / 08 B25J 19/02-19/06

Claims (5)

(57) [Claims] 1. A control system for an external controlled system by wireless communication in which an input / output signal of the controlled system is transmitted by wireless communication between a control computer and an external controlled system to control the controlled system. In, the control computer is provided with communication means having a transfer area, and issues a control command to the controlled system only by reading and writing the transfer area by a control program using a general-purpose programming language, wherein the communication means It has a transfer area that can transmit and receive in a specific frequency band, transfers information as the input / output signal at specific time intervals, and updates the input / output signal when it changes. The controlled system
Communication means provided with an
By transferring to the control computer, the control
The control means is controlled according to the computer's control program.
And the communication means is the same as the control computer.
It can transmit and receive in the frequency band, and the information as the input / output signal
While transferring at a specific time, the input / output signal changes.
Then, there is provided a transfer area for updating this. A method for controlling an external controlled system by wireless communication. 2. The communication means of the control computer has a plurality of unique identification information, and the communication means of a plurality of external controlled systems share the plurality of identification information and select a plurality of information. 2. The control method for an external controlled system by wireless communication according to claim 1, wherein selective control of the external controlled system is performed. Wherein the outside of the control system, external controlled by wireless communication of claim 1 or claim 2, wherein the are equipped with control means suitable to the realization of the control operation of the control program as System control method. 4. The control means provided in the external controlled system includes:
4. The method according to claim 1, wherein the control program is changed according to a change in the control program .
External controlled system control method for wireless communication according to. 5. The communication means of an external controlled system has a function of storing control information of a control program and controlling the controlled system based on the stored information. A control method for an external controlled system by wireless communication according to any one of claims 1 to 4.