JP3190767B2 - Remote control method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control system, and more particularly to a remote control system used for remotely controlling various home appliances.

[0002]

2. Description of the Related Art In a conventional remote control system of this type, the following three methods are used to register remote control data relating to remote operation. (1) Sequential registration method This is a method of registering captured remote control data as it is without compressing it.Since the amount of data of one remote control data is enormous, the number of registered data is large. Then, a huge registration memory area is required. (2) Grouping registration method This is a method of classifying the acquired remote control data into several groups and using the classified group numbers as registration data. The remote control data includes "1" and "0". 2 of
In most cases, the remote control data is represented by two types of classification codes, if the remote control data is ordinary remote control data.
Also, if this method is used, data can be registered in a registration memory area much smaller than the registration memory area used in the above-mentioned “sequential registration method”. In this method, what is expressed as "group",
It may also be called a "category". When this method is used, the registered data amount of one remote control / data is about 16
0 bits. (3) Format Judgment Method Remote control data is not input in an arbitrary form.
It is input in a certain fixed format. This "for-
In the "mat determination method", the format is determined based on the remote control data input thereto, and the "format" of the input remote control data and the input remote control data are transmitted. This is a method in which two types of data, "bit data", in which a data part necessary for the above is converted into a bit format, are registered data.

FIG. 3 is a diagram showing an operation flow when this "format determination method" is used, and the operation is as follows.

In receiving the remote control signal in step 31, an external remote control signal is input, and in step 32
In the measurement of the carrier frequency, the carrier frequency of the input remote control signal is measured, and in the grouping of the remote control data in step 33, the signal data of the input remote control signal is classified into several types. Next, in the carrier frequency determination process of step 35 included in the remote control format determination process of step 34, the format to be searched is determined based on the measured value of the carrier frequency, and the remote control format of step 34 is also determined. −
In the data format determination process of step 36 included in the format determination process, the format is finally determined by the group data value and the arrangement of the group data. The data of the format determined at 36 is registered as registration data.

[0005] When this method is used, the registered data amount of one remote control data is about 32 bits.
In this example, it is possible to register in a memory area that is about one-fifth of the data in the case where the data is registered using the above-described “grouping registration method”. However, other information is actually required. Therefore, registration can be performed in about one third of the memory area. That is, the registration efficiency is approximately tripled.

[0006] Of the above-mentioned conventional registration methods, items (1) and (2) are described in JP-A-60-25.
No. 4898, “Reconfigurable Remote Control Transmitter”.

[0007]

In the above-mentioned conventional remote control system, in the format determination method having the highest registration efficiency (compression ratio), registration is performed by determining how many formats can be determined. A difference in efficiency occurs. That is, as the number of formats that can be determined is larger, any remote control can be dealt with. However, the most bottleneck in the format determination method is a method of searching for a format to which remote control data taken from a number of formats corresponds.

As a search method, as long as the number of formats that can be determined is small, a search may be performed sequentially from the beginning by a "sequential search method". As the number increases, most of the time for registering the remote control data is spent in the search for determining which format the captured remote control data corresponds to. There is a disadvantage that it will.

[0009]

Means for Solving the Problems The remote control system of the present invention includes a remote control, it receives a remote control signal transmitted through the space from the remote controller to the signal
To determine the format of the data, in the remote control system comprising a reception control processing unit extracts and outputs a predetermined control signal, the reception control processing unit, the remote control signal
A receiving unit for receiving, and a predetermined control signal connected to the receiving unit.
A control processing section for outputting a signal, and a control processing section connected to the control processing section.
Receiving the remote control signal and registering it as data.
RAM data section and carrier frequency in advance
Including remote control formats and group data
Data values and the order in which the group data appears
A ROM data section that has been registered,
When registering a signal in the RAM data section,
Which receives the remote control signal in part, a first step for measuring the carrier frequency of the remote control signal,
A second step of <br/> classified into several groups of data of the remote control signal inputted in the control processing unit by referring to the ROM data unit, the remote control signal received
When determining the remote control format, the remote control
According to the value of the number of groups of the signal data, referring to the registered data of the ROM data section indicating the format to be searched, and the value of the number of groups of the classified data, a third step of determining the format of the search target, based on the type of each format that is registered before Symbol ROM data unit, a fourth step of determining the carrier frequency, is classified in the second step Before
Group data values and group data arrangement
, Said compared by the arrangement of the ROM group data values and group data registered in the data unit, determine whether the <br/> with determining the data format of each format applies to end what format a fifth step of, in accordance with finally determined format, to determine the combination of the data number of registered data is minimized, and a sixth step of registering the data to the RAM data unit It is characterized by having.

[0010]

Next, the present invention will be described with reference to the drawings.

FIG. 1 is a conceptual diagram showing the configuration of one embodiment of the present invention. As shown in FIG. 1, a reception control processing device 2 is provided as a partial device on the side of a functional device to be controlled, corresponding to the remote controller 1. As an internal configuration example of the reception control processing device 2, Is a receiving unit 3, a control processing unit 4, R
An AM data section 5 and a ROM data section 6 are included. FIG. 2 is a flowchart illustrating an operation processing procedure when the “format determination method” is used in the present embodiment. Hereinafter, a processing procedure of a remote control signal registration operation in the present embodiment will be described with reference to FIGS. 1 and 2.

First, in step 11, the remote control signal transmitted from the remote controller 1 shown in FIG. 1 is received by the receiver 3, and at the same time, in step 12, the measurement of the carrier frequency is performed. , The carrier frequency of the received remote control signal is measured. Next, the following processing steps are sequentially executed via the control processing unit 4 of FIG.

In the grouping process of the remote control data in step 13, the data of the input remote control signal is classified into several groups. And step 14
In the determination processing of the number of group data in step 15 included in the determination processing of the format of the remote control signal, the number of groups to be searched for is determined by the value of the number of groups of data grouped in step 13. The format is determined. In this case, which format is to be searched according to the value of the number of groups is registered in advance in the ROM data section 6 shown in FIG. 1 as ROM data.

Further, in the carrier frequency judging process of the step 16 included in the remote control format judging process of the step 14, the format of the format to be searched for within the frequency range of the carrier frequency of the remote control signal. Refinement is performed. In this case, the carrier frequency is the RO in which the format of each format to be performed next is registered.
Since it is registered at the head of the M data section 6, it is determined based on the data. Next, similarly, step 1 included in the remote control format determination process of step 14
In the data format determination process of No. 7, the determination process for the data format of each format is performed according to the group data value and the arrangement of the group data, and the format process finally applies to which format. Is determined. The determination at this time is made based on the data value of the group data and the order in which the group data appears. The data values and the order at the time of the judgment are registered in the ROM data section 6 as ROM data in advance.

Next, in the data registration in step 18, a combination of data that minimizes the number of registered data is determined in accordance with the finally determined format, and finally corresponds to the number of registered data. Data registration is performed.

Based on the above description, an embodiment using the NEC format will be described again. N
For the EC format, the format described in the μPD6121 data sheet (IC-6857C) of the NEC remote control IC is used. 1. When Registering NEC Format (with Repeat Code) (1) In receiving the remote control signal in step 11, FIG.
The data of the remote control signal in the NEC format is input to the receiving unit 3 and the input data is stored in the RAM data unit 5 of FIG. 1 as needed. At this time, when the data of the remote control signal is input, the carrier frequency of the remote control signal is simultaneously measured in step 12. (2) In the grouping of the remote control data in step 13, the received and captured data is read out from the RAM data section 5, and the read out remote control data is compared one by one. If it is determined in the comparison result that the data is the same, it is determined that the data belongs to the same group. If it is determined that the data is different, the data is compared with a different group. If they do not match any of the groups, they are registered as new groups. In this case, the following six groups are registered.

Leader code part at data transmission Data “1” part Data “0” part Row transmission part at data transmission Leader code part at repeat code transmission Row transmission part at repeat code transmission (3) In the process of determining the number of groups and data in step 15, the number of groups to be registered becomes six.
The format to be searched is determined so that only the mat is searched. At this time, a serial number (hereinafter, referred to as a format number) is assigned to the format to be searched in advance, and the format is registered in the ROM data section 6 so that the format can be searched by the number of groups. Example of data registration in this case (1)
Is shown below.

[Data Registration Example (1)] Format Search Data ; FORMAT NO. Number of groups = 6 (4) In the carrier frequency determination process of step 16, it is determined whether or not the carrier frequencies match only in the format determined by the number of groups. In this case, the value of the carrier wave frequency is registered in the ROM data section 25 in advance so that it can be searched by the format number. If the carrier frequency values do not match,
A determination process for the carrier frequency of the next format number is performed. (5) If the carrier frequencies match, the value of the group data and the order of the group data are determined in the data format determination process of step 17. As for the group data values and the order of the group data, all the conceivable data are registered in the ROM data section 6 in advance. If the values do not match in the order of the group data or the order of the group data, the process proceeds to the next format number and the determination is made based on the determination of the carrier frequency. An example (2) of data registration in this case is shown below.

[Data Registration Example (2)] Transmission Type Data DW 35H; Carrier Frequency DB 00H, 00H; Leader Code DB 32-1, 12H During Data Transmission; Number of Data and Data “0”, “1” Code DB 00H, 44H; Row transmission code for data transmission DB 00H, 33H; Leader code for repeat code transmission DB 80H, 55H; Row transmission code for repeat code transmission In this data registration example (2) Are registered in the order of “carrier frequency data” and “order of group data”. For the data of "order of group data",
The first 8 bits indicate the number of data, and when the most significant bit is “1”, it means the last data. The next 8 bits indicate the group data numbers and ranges that can be determined to be valid for the number of data, and indicate that the group data numbers from the upper 4 bits number to the lower 4 bits number are valid. ing. (6) When the format is determined, data to be registered is created in the process of registering data in step 18 so that the number of registered data is minimized. In this case, transmission is possible if the custom code 16 bits and the data code 8 bits are known, so that the registered data is 24-bit data. The data to be registered as learning data requires a key number and a format number in addition to the 24 bits. 2. When Learning NEC Format (Continuous Code) In the format described in the aforementioned μPD6121 data sheet, the first transmission data and the second transmission data are different. Therefore, the above continuous code is
This means that the second and subsequent data are transmitted in the same manner as the first transmission data. (1) When receiving the remote control signal in step 11, NE
Remote control data in C format is input, and the input data is stored in the RAM data section 5 of FIG. 1 as needed. At this time, when the remote control data is input, the carrier frequency of the remote control signal is simultaneously measured in step 12. (2) In the remote control data grouping process of step 13, the received and captured remote control data is
The read remote control data is read from the M data section 5 and compared with each other. If it is determined in the comparison result that the data is the same, the data is determined to be in the same group. If the data is determined to be different, the data is compared with a different group. If they do not match any of the groups, they are registered as new groups. In this case, the following four groups are registered.

Leader code part at the time of data transmission Data “1” part Data “0” part Row transmission part at the time of data transmission (3) In the determination processing of the number of groups and data at step 15, the number of registered groups is four. Group form
The format to be searched is determined so that only the mat is searched. At this time, the format number to be searched is registered in the ROM data section 6 in advance so that the search can be performed by the number of groups. For the data registration example in this case, the data registration example (1) is referred to. (4) In the determination process of the carrier frequency in step 16,
Only for formats determined by the number of groups,
It is determined whether the carrier frequencies match. In this case, the value of the carrier frequency is registered in the ROM data section 6 in advance so that the value can be searched by the format number.
If the carrier frequency values do not match, a determination process is performed on the carrier frequency of the next format number. (5) If the carrier frequencies match, the value of the group data and the order of the group data are determined in the data format determination process in step 17. As for the group data values and the order of the group data, all the conceivable data are registered in the ROM data section 6 in advance.
If the values do not match in the order of the group data or the order of the group data, the process proceeds to the next format number and the determination is made based on the determination of the carrier frequency. An example (3) of data registration in this case is shown below.

[Data Registration Example (3)] Transmission Type Data DW 35H; Carrier Frequency DB 00H, 00H; Leader Code DB 32-1, 12H During Data Transmission; Number of Data and Data “0”, “1” (6) When the format is determined, the data to be registered is created in the data registration process of step 18 so that the number of registered data is minimized. Is performed. In this case,
If the custom code 16 bits and the data code 8 bits are known, transmission becomes possible.
It becomes 24-bit data. The data to be registered as learning data requires a key number and a format number in addition to the 24 bits.

[0022]

As described above, according to the present invention, when a remote control signal is registered, in the remote control format determination process, any format is determined based on the value of the number of groups of the grouped remote control data. By registering beforehand whether to search for a format as ROM data and determining the format to be searched by referring to the registered data,
Compared with the conventional "sequential search method", the search time can be greatly reduced, and this has the effect that the efficiency of remote control signal registration can be increased.

[Brief description of the drawings]

FIG. 1 is a conceptual block diagram of one embodiment of the present invention.

FIG. 2 is a diagram showing an operation processing procedure in the embodiment.

FIG. 3 is a diagram showing an operation processing procedure in a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Remote controller 2 Reception control processing device 3 Reception part 4 Control processing part 5 RAM data part 6 ROM data part 11, 31 Remote control signal reception step 12, 32 Carrier frequency measurement step 13, 33 Grouping of remote control data Steps 14, 34 Processing step for determining remote control format 15 Processing step for determining group / data number 16, 35 Processing step for determining carrier frequency 17, 36 Data processing determination step 18, 37 Data registration step

Continuation of the front page (56) References JP-A-55-129829 (JP, A) JP-A-2-86395 (JP, A) JP-A-2-192297 (JP, A) JP-A-4-10896 (JP) JP-A-4-117799 (JP, A) JP-A-5-37983 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) H04Q 9/00-9/16

Claims (1)

(57) [Claims] 1. A remote control and its signal by receiving a remote control signal transmitted through the space from the remote controller
A receiver to determine the format of the data, in the remote control system comprising a reception control processing unit extracts and outputs a predetermined control signal, the reception control processing unit, for receiving the remote control signal contained in, Connected to the receiver
A control processing unit for outputting a constant control signal, and the control processing unit
And receives the remote control signal and converts it into data.
RAM data part for registering
Various remote control formats and groups including frequencies
Data value of data and appearance of said group data
And a ROM data section for registering the order in which
In registering the interval control signal in the RAM data section,
Which receives the remote control signal by the reception section, before
A first step for measuring the carrier frequency of the serial remote control signal, the data of the remote control signal inputted in the control unit in reference to several grayed <br/> loop the ROM data unit a second step of classifying, the remote received
When determining the remote control format of the control signal,
The ROM data indicating a format to be searched according to the value of the number of groups of data of the remote control signal.
Refers to the registration data of the data unit, the classified group number of values of the data, the third step and, prior Symbol each format a group registered in the ROM data unit that determines the format of the search target A fourth step of determining a carrier frequency and a classification in the second step.
Data value and group data of the group obtained
Are compared according to the group data values registered in the ROM data section and the group data arrangement.
And, it determines Then together the data format of each format
A fifth step of deciding which format is finally applicable, and a combination of data that minimizes the number of registered data is determined in accordance with the finally determined format . remote control system, characterized in that it comprises a sixth step of registering the data.