JP3784240B2 - Communication system and transmission device for switchgear - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication system for an opening / closing device, for example, a remote operation system such as a shutter, a door, a window, an overhead door, a gate, a gate (a gate for a parking lot, etc.), a roll screen (for example, a shading curtain), a blind, an awning device. It can be applied to a remote control system).
[0002]
The present invention also relates to a transmission apparatus as a component of such a communication system.
[0003]
[Prior art]
Many opening / closing devices have been proposed that can instruct opening / closing of the opening / closing body by wireless communication using a remote control transmitter. For example, in a garage shutter, it is convenient that the user can open and close the shutter without getting off the vehicle, and a wireless remote control system is often applied.
[0004]
Such a remote control transmitter of the wireless remote control system for shutter has a predetermined specification (that is, a predetermined transmission frequency, a predetermined modulation method (for example, ASK modulation signal or FSK modulation signal), a predetermined transmission frame format, etc.). The transmitted wireless signal is transmitted wirelessly.
[0005]
On the other hand, the remote control receiver uses a reception antenna attached to the wall near the shutter or the front or lower surface of the shutter storage box to capture radio waves (source radio signal) from the remote control transmitter via the wireless transmission path. .
[0006]
In the remote control receiver, the electrical signal captured and converted by the receiving antenna is subjected to demodulation processing and decoding processing corresponding to the above-mentioned predetermined specifications, and the original transmission signal (demodulated signal) that the remote control transmitter is about to transmit And information content can be obtained.
[0007]
That is, the reception control unit in the remote control receiver that has received the original transmission signal decodes the original transmission signal and transmits the original transmission signal based on identification information (hereinafter abbreviated as ID) inserted in the signal. Confirm that the original remote control transmitter can issue an operation instruction to the remote control receiver (ID verification), and then based on the information content inserted in the original transmission signal, An open / close control signal for instructing the shutter operation (open operation, close operation, stop operation, etc.) is formed and supplied to the shutter control.
[0008]
The shutter control unit executes the shutter operation intended by the operator of the remote control transmitter by controlling the operation of the motor for operating the shutter.
[0009]
[Problems to be solved by the invention]
By the way, in the wireless remote control system described above, it is necessary that the specifications of the transmission source radio signal transmitted by the remote control transmitter and the specifications of the demodulation processing and decoding processing performed by the remote control receiver are perfectly matched. If these specifications do not match, the shutter may not operate at all, or an operation (malfunction) different from the operator's intention may occur.
[0010]
Normally, since the remote control transmitter and the remote control receiver are a pair of corresponding products, such specification mismatch does not occur.
[0011]
However, for example, a new remote control transmitter that is new as a product and an old remote control transmitter generally have different specifications and are not compatible.
[0012]
As an example, it is assumed that a new remote control transmitter capable of transmitting a transmission source radio signal that reaches farther than the old type by increasing the transmission power of the remote control transmitter is developed. In various radio wave regulations, the size of transmission power and its frequency are finely regulated from the bit pattern to the bit pattern, so this new remote control transmitter is designed to achieve one purpose of increasing transmission power. It is normal to change other specifications (frequency, modulation method, etc.).
[0013]
Therefore, the new remote control transmitter cannot normally communicate normally with the old remote control receiver corresponding to the old remote control transmitter.
[0014]
This brings a number of disadvantages.
[0015]
For example, when an old remote control transmitter is broken, it is not sufficient for the user to replace only the remote control transmitter with a new one, and the old remote control receiver that is not broken must be replaced with a new one. Even when this broken old remote control transmitter can be repaired, there are the following disadvantages.
[0016]
In other words, the manufacturer usually reserves a stock handling period of, for example, several years for maintenance, but after that stock handling period, the broken old remote control transmitter cannot be repaired. There is a high possibility that a normal old remote control transmitter cannot be provided.
[0017]
Although the case where the remote control transmitter is broken has been described above, the situation is the same even when the remote control receiver is broken.
[0018]
On the other hand, when dealing with a remote control transmitter, there is a demand to operate the shutter from as far as possible.
[0019]
However, because the maximum value of the transmission power of the remote control transmitter is regulated by the aforementioned radio wave regulations, there is a certain upper limit for the distance that the operator of the remote control transmitter can operate the shutter. It is difficult to operate the shutter from a long distance.
[0020]
For the purpose of maintenance or the like, the remote control transmitter may be replaced with a dedicated reception device, but in that case, the same problem as described above may occur.
[0021]
Such a problem is common not only to shutters but also to remote control systems for other opening and closing devices such as doors, windows, and overhead doors.
[0022]
[Means for Solving the Problems]
In order to solve such a problem, the transmission device of the first invention is: A first non-transmission unit that transmits a first communication signal whose specifications relating to the communication signal match the first opening / closing body side communication device. An open / close body side communication device; The specifications related to the second communication signal from the corresponding second non-opening / closing body side communication device are matched and the specifications related to the first communication signal from the first non-opening / closing body side communication device are not matched. 2 Communication with the switching body side communication device Intervene in A transmission device comprising: First non Opening and closing body side communication device From a first format having a plurality of fields including open, closed and stop fields Receive communication signals First Receiving means; 2nd according to the 2nd format which has a plurality of fields including the field of opening, closing, and stopping to said 2nd opening-and-closing body side communication device Send communication signal And a conversion processing means for generating the second communication signal by shifting, deleting, or replacing each field of the received first communication signal according to the first format. And a transmission means.
[0024]
Second In the communication system of the switchgear according to the invention, 1st invention A transmission device of The second An open / close body side communication device; The first A non-opening / closing body-side communication device, First and second A communication system of a switchgear that uses a radio signal as a communication signal, wherein the communication signal of the transmission device reaches within one or a plurality of the communication regions Second An opening / closing body side communication device is installed.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
(A) Embodiment
Hereinafter, an embodiment will be described by taking as an example a case where the communication system and the transmission device of the switchgear according to the present invention are applied to a wireless remote control system and a wireless transmission device for a garage shutter.
[0026]
A feature common to the first to third embodiments is to provide compatibility between a remote control transmitter and a receiver having different specifications by interposing a wireless transmission device having a specification conversion function.
[0027]
(A-1) Configuration of the first embodiment and operation of each unit
FIG. 7 shows the overall configuration of the radio remote control system 30 for the garage shutter.
[0028]
In FIG. 7, the wireless remote control system 30 includes a second development type transmitter 31, a third development type transmitter 32, a wireless transmission device (relay station) 10, and a second development type receiver 33. The third development type receiver 34 is provided.
[0029]
Here, the second development type indicates a product developed second, and the third development type indicates a product developed third. Therefore, compared with the third development type, the second development type transmitter 31 is an old type remote control transmitter, and the second development type receiver 33 is an old type remote control receiver. The second development type transmitter 31 and the second development type receiver 33 have the above-mentioned predetermined specifications (that is, a predetermined transmission frequency, a predetermined modulation scheme (for example, a transmission source wireless transmission signal) SL1). , ASK modulation signal, FSK modulation signal, etc.), predetermined transmission frame format, etc.) are perfectly matched.
[0030]
Similarly, as compared with the second development type, the third development type transmitter 32 is a new type remote control transmitter, and the third development type receiver 34 is a new type remote control receiver. In the third development type transmitter 32 and the third development type receiver 34, the above-mentioned predetermined specifications relating to the radio signal (source radio transmission signal) SL2 are perfectly matched.
[0031]
However, the predetermined specifications do not match between the radio signals SL1 and SL2. As an example, it is assumed that the frequency of the radio signal is about 300 MHz (for example, 315 MHz) in SL1, whereas it is about 400 MHz (for example, 426 MHz) in SL2.
[0032]
Note that each of the receivers 33 and 34 in FIG. 7 need not be a single communication device. Here, as shown in FIG. 2, it is assumed that there are two types, four (P = 4) communication devices.
[0033]
That is, the receivers 33A and 33B are both old secondary development receivers, and the receivers 34A and 34B are both new tertiary development receivers.
[0034]
Among these, the receiver 33A is installed in the garage G1, the receiver 34A is installed in the garage G2, the receiver 34B is installed in the garage G3, and the receiver 33B is installed in the garage GP (P = 4).
[0035]
In the circular area E1 shown in FIG. 2 (the size is, for example, a radius of about 100 m), the wireless transmission device 10 transmits the wireless signal SL1 transmitted from the secondary development type transmitter 31 and the tertiary development type transmitter 32. , SL2 indicates a geographical area (reception area) in which both can be effectively received. As is apparent from the shape of the reception area E1, it is assumed that the antenna unit of the wireless transmission device 10 has a substantially omnidirectional reception pattern at least in a horizontal plane. In such a situation where the wireless signals SL1 and SL2 cannot be specified from which direction, the antenna unit configuration is simplified, and the installation work of the wireless transmission device 10 is to be simplified, the omnidirectional pattern is used in this way. It is advantageous to adopt.
[0036]
However, if necessary, a directivity pattern having a sharp antenna reception gain only in a specific direction can be employed. It may be advantageous to adopt a directivity pattern in situations where the radio signals SL1 and SL2 can be specified in advance from which direction the radio signals SL1 and SL2 come from, or when the direction of the source of the jamming radio wave can be specified. In this case, a large antenna gain is obtained with a pattern projecting sharply in the direction of arrival of SL1 and SL2, and the antenna gain is set so as to have a very small antenna gain in the direction of arrival of jamming radio waves.
[0037]
Even in the present embodiment that employs an omnidirectional pattern, it is considered that the actual reception area is usually not such a circle because it is affected by the reflection of a building or interference radio waves. Here, for the sake of simplicity of explanation, a circular reception area is assumed.
[0038]
The number of receivers (33A and the like) existing in the reception area E1 may be smaller or larger than the four shown here. Further, as shown in the figure, they do not have to be arranged in a line, and may be located anywhere within the reception area E1.
[0039]
Although a planar area is shown here, there is a difference in height between the receivers (for example, between the receivers 33A and 34A) or between the receiver and the transmitter (for example, between the receiver 33A and the transmitter 31). In this sense, the reception area E1 may be a substantially spherical reception space.
[0040]
Furthermore, in the present embodiment, a transmission area in which a wireless signal (SL1 or the like) wirelessly transmitted by the wireless transmission device 10 to be received by a receiver (33A or the like) is effectively received by the receiver is also in the reception area E1. Assume that they match. Therefore, the area E1 is also a transmission area.
[0041]
Of course, if necessary, the size of the transmission area of the wireless transmission device 10 and the size of the reception area may be different.
[0042]
In this embodiment, since the wireless transmission device 10 is shared by users of the receivers 33A, 33B, 34A, and 34B, when selecting the installation location of the wireless transmission device 10, all the receivers can be as much as possible. It is necessary to take care to be located near the center of the reception area E1. This is because the conditions such as the jamming wave fluctuate with the passage of time, and thus the area E1 may be reduced or deformed.
[0043]
Further, the installation may be performed directly on the ground surface or the like, if necessary, or may be performed by attaching to the shutter storage box 60 as shown in FIG. When attached to the shutter storage box 60, it is disposed at a position about 3 m higher than the ground 61. As an example, the wireless transmission device 10 may be fixed with screws or the like.
[0044]
Furthermore, power supply to the wireless transmission device 10 may be performed in any form, but as an example, if it can be performed from a household AC 100 volt outlet, it is simple and economical. .
[0045]
In general, it is considered that the wireless transmission device 10 is shared by as many users as possible from the viewpoint of hardware usage efficiency, economic efficiency, and the like. It is good to do.
[0046]
The third development type transmitter 32 having higher transmission power than the second development type transmitter 31 can deliver the radio signal SL2 to the radio transmission device 10 even from outside the reception area E1. However, here, for the sake of simplicity, it is assumed that there is no difference in the transmission power.
[0047]
FIG. 1 shows an internal configuration of the wireless transmission device 10 of the present embodiment.
[0048]
(A-1-1) Internal configuration of wireless transmission device
In FIG. 1, the wireless transmission device 10 includes a wireless reception unit 11, a first conversion processing unit 12, a second conversion processing unit 13, a first wireless transmission unit 14, and a second wireless transmission unit 15. Yes.
[0049]
Among these, the radio receiving unit 11 includes a receiving antenna unit, filter means, necessary RF (high frequency) amplifying means, and the like, and converts the received radio signal SL1 or SL2 into an intermediate signal BS1 or BS2. The intermediate signal BS1 corresponds to the radio signal SL1, and the intermediate signal BS2 corresponds to the radio signal SL2.
[0050]
Both the intermediate signals BS1 and BS2 output from the wireless signal receiving unit 11 are supplied to both the first conversion processing unit 12 and the second conversion processing unit 13.
[0051]
Here, the first conversion processing unit 12 is a part that converts the intermediate signal BS1 into the intermediate signal BS2, and the second conversion processing unit 13 is a part that converts the intermediate signal BS2 into the intermediate signal BS1.
[0052]
The first conversion processing unit 12 and the second conversion processing unit 13 may have substantially the same internal configuration as will be described later.
[0053]
Since the first conversion processing unit 12 is a part that converts the intermediate signal BS1 into the intermediate signal BS2, when the intermediate signal BS2 is supplied, if the BS2 is processed as BS1, an unexpected intermediate signal BS2 is generated. Since it may be output (for example, information content may be logically destroyed and readability on the receiver side may be lost), it operates only when the supply of BS1 is received. It is necessary to equip an operation stop function that does not work when received.
[0054]
Further, this operation stop function allows a radio signal (for example, SL1 converted from SL2) wirelessly transmitted from the wireless transmission device 10 by unnecessary conversion processing to be directly received by the receiver without passing through the wireless transmission device 10. It can be prevented that the radio signal (SL1 transmitted by the transmitter 31X) received by (for example, 33B) becomes a jamming radio wave (interference wave).
[0055]
Since the same applies to the second conversion processing unit 13, the second conversion processing unit 13 operates only when receiving the supply of BS2, and has an operation stop function that does not operate when receiving the supply of BS1. It is necessary to equip.
[0056]
Of course, the radio signals SL1 and SL2 are simultaneously transmitted in the same reception area E1 or in the vicinity thereof, and the possibility of interference due to the simultaneous transmission is considered to be low in probability, so this is ignored. It is also possible to select a policy that simplifies the configuration. However, when the wireless transmission device 10 is shared by a large number of users, the frequency and level of interference due to simultaneous transmission usually increases, and therefore it is preferable to provide the operation stop function.
[0057]
The first wireless transmission unit 14 that receives the intermediate signal BS2 from the first conversion processing unit 12 includes a transmission antenna unit, filter means, necessary RF amplification means, and the like, and is a part that converts the BS2 into a radio signal SL2. is there. The radio signal SL2 that can be received by the radio signal receiver 11 and the radio signal SL2 that is transmitted by the first radio signal transmitter 14 are the same in terms of frequency and modulation method, but the information content that is accommodated Of course it can be different.
[0058]
Since the first radio transmission unit 14 is always supplied with the intermediate signal BS2, the radio signal SL2 is always transmitted from the first radio transmission unit 14, and the radio signal SL1 is transmitted from the radio transmission unit 14. It can never be done.
[0059]
Similarly, the second wireless transmission unit 15 that receives the intermediate signal BS1 from the second conversion processing unit 13 includes a transmission antenna unit, filter means, and the like, and is a part that converts the BS1 into a wireless signal SL1.
[0060]
In addition, since the intermediate signal BS1 is always supplied to the second radio transmission unit 15, the radio signal SL1 is always transmitted from the second radio transmission unit 15, and the radio signal SL2 is transmitted from the radio transmission unit 15 to the second radio transmission unit 15. This also applies to points that cannot be transmitted from.
[0061]
The first and second radio transmitters 14 and 15 can also be integrated into one component for the radio signals SL2 and SL1 as in the radio receiver 11, but it is antenna engineering. From the viewpoint, if the frequency and transmission power are different, it is considered that it is preferable to configure different antenna units and so on, and therefore, in this embodiment, a separate unit is used.
[0062]
On the other hand, it is possible to provide the radio receiving unit 11 separately for SL1 and SL2, but at least with respect to the received power, how far the transmitter 31 (32) will transmit from. Since it cannot be specified, we decided to use a single antenna unit, etc., focusing on cost reduction and hardware reduction rather than strictness.
[0063]
If necessary, the antenna unit of the wireless reception unit 11 and all or part of the antenna units of the wireless transmission unit 14 and / or the wireless transmission unit 15 can be shared.
[0064]
When the above-described first conversion processing unit 12 is operating and the second conversion processing unit 13 is not operating, the wireless transmission device 10 is substantially in the state shown in FIG. In addition, when the second conversion processing unit 13 is operating and the first conversion processing unit 12 is not operating, the state shown in FIG.
[0065]
The corresponding part of the first conversion processing unit 12 corresponds to each of the second development type reception function and the third development type transmission function in FIG. 8 (A), and the third order in FIG. 8 (B). A corresponding part of the second conversion processing unit 13 can correspond to each of the development type reception function and the second development type transmission function.
[0066]
In addition, as shown in FIG. 8, the antenna unit is usually configured by built-in antennas IA1 and IA2, and when transmitting and receiving, if the area E1 is to be enlarged, external antennas EA1 and EA2 are attached. It can also be set as such.
[0067]
Such a wireless transmission device 10 can be configured to have the same size as the receiver 33 or 34.
[0068]
Next, an internal configuration of the first conversion processing unit 12 is shown in FIG. The internal configuration of the second conversion processing unit 13 is the same as this.
[0069]
(A-1-2) Internal configuration of the first conversion processing unit
In FIG. 6, the first conversion processing unit 12 includes a demodulation unit 20, a determination unit 21, a remodulation unit 22, an amplification unit 23, a decoding unit 24, and a recoding unit 25.
[0070]
Among them, the demodulator 20 is a part that receives the supply of the intermediate signal BS1 or BS2 from the radio receiver 11. The demodulator 20 that has received the supply of the intermediate signal performs demodulation processing assuming that the target intermediate signal BS1 is supplied, and outputs the demodulated signal DS to the decoder 24 and the determination unit 21. Since the expected result cannot be obtained unless the demodulation process corresponds to the modulation process performed on the transmitter side, when the supplied intermediate signal is the target BS1, the demodulated signal DS is normal. However, when it is BS2, it becomes abnormal.
[0071]
The determination unit 21 detects whether the demodulated signal DS is normal or abnormal, thereby determining whether the intermediate signal supplied to the demodulator 20 is the target BS1 or non-target BS2 or the like (interfering radio waves other than BS2 or the like). This is a part that realizes the above-described operation stop function. This is a demodulation stage determination process performed by the determination unit 21.
[0072]
Only when the determination unit 21 determines that the target BS 1 is supplied by the determination process at the demodulation stage, the re-modulation permission signal RA is supplied to the re-modulation unit 22 and it is determined that an unintended signal is supplied. In this case, the remodulation permission signal RA is not supplied.
[0073]
On the other hand, the decoding unit 24 that has received the demodulated signal DS from the demodulating unit 20 performs decoding processing by regarding the demodulated signal DS as normal, and converts the decoded signal DC into the re-encoding unit 25 and the determining unit 21. This is the output part.
[0074]
Similarly to the demodulation process, the decoding process cannot obtain an expected result unless it corresponds to the encoding process performed on the transmitter side, so the supplied intermediate signal is the target BS1. In this case, the decoded signal DC is normal, but when it is BS2, the decoded signal DC is abnormal.
[0075]
The determination unit 21 that has received the supply of the decoded signal DC next performs a determination process at the decoding stage, and re-encodes the format signal (re-encoding permission signal) FS only when it is determined that the target BS1 is supplied. The format signal FS is not supplied when it is supplied to the conversion unit 25 and it is determined that an unintended signal is supplied.
[0076]
If the difference in specifications between the radio signals SL1 and SL2 is only the logical structure of the format, the above-described demodulation stage determination may erroneously determine that the demodulated signal is normal. By performing the determination process at the decoding stage, such erroneous determination can be eliminated.
[0077]
On the contrary, there is a possibility that it is erroneously determined to be normal at the decoding stage and is determined to be abnormal at the demodulation stage. In that case, since the re-modulation permission signal RA is not supplied, re-encoding and re-modulation are executed only when both the determination at the decoding stage and the determination at the demodulation stage are normal. .
[0078]
The re-encoding unit 25 is a part that executes re-encoding of the decoded signal DC obtained by decoding by the decoding unit 24. Here, the re-encoding is the same operation as the normal encoding performed by the transmission control unit 36 (see FIG. 10) of the transmitter 32, and the formation of a predetermined format by format conversion and the conversion of the encoding method ( Code conversion) is executed by this re-encoding.
[0079]
An example of the format structure is shown in FIG.
[0080]
The format structure shown in FIG. 12A includes a flag sequence S11, an ID code S12, a control code S13, and a check code S14.
[0081]
Among them, the control code S13 includes an “open” field F11 for instructing an opening operation of the shutter, a “closed” field F12 for instructing a closing operation, and a “stop” field F13 for instructing a stopping operation. Fields F11, F12, and F13 are fields in bit units. Assuming that “1” is active and “0” indicates inactivity, the bit pattern of the control code S13 is “100” (= F11F12F13), for example, when instructing the shutter opening operation.
[0082]
The format structure of FIG. 12B is composed of a flag sequence S21, a type code S22, a password code S23, an ID code S24, a control code S25, and a check code S26.
[0083]
Among these, in the control code S25, in addition to the “open” field F21 for instructing the shutter opening operation, the “closed” field F22 for instructing the closing operation, the “stop” field F23 for instructing the stopping operation, the ventilation operation is instructed. “Ventilation” field F24, “Position A” field F25 indicating intermediate position A, “Position B” field F26 indicating intermediate position B, “Position C” field F27 indicating intermediate position C, and shutter A “device number” field F28 for indicating a device number is provided.
[0084]
Here, the ventilation operation is an operation that shifts from a ventilation-prohibited fully closed state to a ventilable fully closed state.
[0085]
This transition is executed, for example, by increasing the vertical distance between the slats constituting the shutter. When the distance between the slats increases, the air in the two spaces separated by the shutter is exchanged via the distance.
[0086]
The intermediate positions A to C are fields for designating the opening degree of the shutter in a predetermined partial opening operation. For example, the intermediate position A indicates partial opening of a predetermined size close to full closing, the intermediate position B indicates half open (a state in which only half is open), and the intermediate position C indicates a predetermined size close to full opening. It may indicate partial opening.
[0087]
The type code S22 is a field for displaying the contents of the operation the user is going to perform using the format. For example, the type code S22 indicates a shutter opening / closing operation with a bit pattern of “01”. ID registration is indicated by the bit pattern.
[0088]
The personal identification code S23 arranged on the right side of the type code S22 is a field that can be used to enhance the security of the shutter. The reason why the personal identification code S23 is provided in addition to the ID code S24 containing the ID described above is that it is effective as a preparation for the case where the remote control transmitter (31, etc.) is stolen, for example.
[0089]
In other words, the ID is registered in advance at an arbitrary time such as at the time of factory shipment, and is automatically transmitted from the remote control transmitter and processed by the remote control receiver at the time of daily shutter operation. However, the password S23 requires that the user operates the key operation unit 35 (see FIG. 10) of the remote control transmitter (31 or the like) every time the shutter operation is performed.
[0090]
Therefore, even if the remote control transmitter matches the ID, if the sent code does not match the pre-registered code, the remote control receiver (34A etc.) transmits from the remote control transmitter. The control code S25 to be executed is ignored and the instructed shutter operation is not performed. If necessary, it is possible to adopt a system configuration in which an alarm is issued when reception of a format in which the IDs match and the passwords do not match is repeated a predetermined number of times.
[0091]
The check codes S14 and S26 are error detection fields.
[0092]
The shutter device number F28 is a field for designating a shutter device. For example, seven shutter devices can be uniquely designated by three bits from “000” to “111” and seven bit patterns. it can.
[0093]
In the case of the format structure of FIG. 12B, it is impossible that all the fields S21 to S26 are effective at the same time. For example, when a password is registered or a password is collated, the field of the password S23 is valid, but the control code S25 is invalid. On the contrary, when the shutter operation is instructed, the field of the password S23. Is invalid and the control code is valid.
[0094]
Therefore, a user who wants to perform a shutter operation normally first checks the password code S23 and uses the control code S25 after the remote control receiver (34A, etc.) returns a positive verification result. The shutter operation, which is the original purpose, is performed.
[0095]
The system configuration is such that the number of operation keys provided in the key operation unit 35 is limited to about three, which will be described later, and it is difficult to transmit the password code S23 and the control code S25 at the same time. This is because.
[0096]
Therefore, when using the format of FIG. 12B, the remote control transmitter and the remote control receiver need to perform two-way communication.
[0097]
On the other hand, if the two-way communication is performed, a user who uses a remote control transmitter (for example, 32Y) can also perform operations such as ID code registration and PIN code registration using only the remote control transmitter. Is possible.
[0098]
As is clear from the above description, the format structure of FIG. 12B has more functions than the format structure of FIG.
[0099]
As an example, if the format used in the above-described second-development type transmitter 31 and receiver 33 is the format shown in FIG. 12A, the above-described third-development type transmitter 32Y and receiver 34 are used. The format used may be the format shown in FIG.
[0100]
The re-encoding unit 25 in FIG. 6 that processes such a format is equipped with a buffer memory (decoding unit reception buffer) that temporarily stores the decoded signal DC supplied from the decoding unit 24 as necessary. To do. This is because the timing adjustment is performed in preparation for the delay time until the decoding stage determination process in the determination unit 21 for the corresponding decoded signal DC is completed.
[0101]
The contents of the format conversion process performed by the re-encoding unit 25 are broadly considered to include a rearrangement process for each field on the format and a bit conversion process for each field. The encoding method conversion described above is executed after these rearrangement processing and bit conversion processing.
[0102]
All the fields on the format pay attention to their functions, and common fields (for example, ID codes (S12, S24) and “open” common to the two formats shown in FIGS. 12A and 12B). ”,“ Closed ”,“ stop ”fields (F11 to F13, F21 to F23, etc.) and non-common fields (eg, type code S22) that exist only in one format.
[0103]
In the format conversion process, the common field itself can be passed as it is. However, on the side of the remote control receiver that receives this, the continuous relationship between the fields also becomes a problem, and therefore the rearrangement process is necessary. Become.
[0104]
Normally, a remote control receiver that can process only the format shown in FIG. 12A receives the format shown in FIG. 12B, ignores the type code S22, the password code S23, etc. that are unnecessary for itself, and is necessary for itself. This is because the ID code S24, the control code S25 (open F21, closed F22, stop F23 among them) and the function for processing only the check code S26 (multiple format compatible function) are considered not equipped. In addition, if such a function corresponding to multiple formats is provided, the scale of both software and hardware increases, so it can be said that it is preferable not to provide it.
[0105]
In the rearrangement process, the common field is shifted in position as necessary, and the non-common field is deleted and removed from the format (field removal process) or replaced with a predetermined invalid bit pattern (invalid field). Insertion process).
[0106]
Of these, the field removal processing is required in the format conversion processing from FIG. 12B to FIG. The fields to be subjected to the field removal process are all the non-common fields S22, S23, S26 and the fields F24 to F28 in the control code S25.
[0107]
On the contrary, the invalid field insertion processing is required in the format conversion processing from FIG. 12 (A) to FIG. 12 (B). The fields subject to the invalid field insertion process are all the non-common fields described above. In the invalid field insertion process, a predetermined bit pattern indicating that the field is an invalid field is written in each field. The predetermined bit pattern may be all 0 as an example. That is, for example, when the password code S23 is a 7-bit field, the “password” field S23 is set to “0000000” to form the format.
[0108]
In this case, the remote control receiver that receives the format from the wireless transmission device 10 needs to recognize that at least all 0 is an invalid field.
[0109]
The contents of the invalid field bits (patterns) may be different for each field. For example, if there is a 1-bit field that has only a 1-bit area, there is no way to display active, inactive, and invalid in 1 bit, so the invalid field is either active or inactive. It becomes the same. Therefore, the invalid field insertion processing in this case is the same processing as the bit conversion processing described later.
[0110]
In this way, for example, the operation of the remote control receiver that receives the format in which the password S23 is an invalid field in response to the format is a problem on the remote control receiver side. If the same operation (for example, the operation of ignoring the control code or issuing the above warning) is performed in the same manner as when the format including the secret code S23 that does not match is received without intervening Since the meaning of providing the device 10 is lost, it is considered that an affirmative and purposeful operation based on the intention of the user of the remote control transmitter is performed. The same applies to non-common fields other than the password S23.
[0111]
There are also fields that are unclear what is positive and purposeful due to the nature of the function of each field. For example, the “ventilation” field F24 and the “position A” field F25.
[0112]
When such a field is an invalid field, how to process it (an invalid field handling process) may be set in advance on the remote control receiver side.
[0113]
For example, when the “ventilation” field F24 replaced with the invalid field by the format conversion process is received, the close operation may be performed by assuming that full-close is instructed, and it is assumed that full-open is instructed. An opening operation may be performed. Further, it may be considered that nothing is instructed and ignored (no operation is performed while maintaining the previous state).
[0114]
The same applies to the “position A” field F25 and the like.
[0115]
In general, the development type new remote control receiver tends to have more functions, so that the invalid field handling processing can be installed in a newer and more multifunctional remote control receiver. On the other hand, if the old remote control receiver of development type has more functions, the invalid function is expected in anticipation of the function of a small remote control receiver to be developed in the future at the time of development of the old remote control receiver. It is usually considered difficult to equip field-compatible functions. However, if a development plan covering a plurality of development types is prepared in advance, it is possible to equip an invalid field handling function even in such a case.
[0116]
Note that the rearrangement process, invalid field insertion process, and bit conversion process are not only performed in units of large fields such as S11 and S23 but also small fields included in each large field (for example, “open” in the large field S13). "Field F11 and" closed "field F12).
[0117]
In the example of the format shown in FIG. 12, the format shown in FIG. 12B includes all the fields shown in FIG. 12A and includes fields that do not exist in the format shown in FIG. However, any two formats to be subjected to the format conversion process do not necessarily have such a relationship.
[0118]
On the other hand, the bit conversion processing of each field described above is executed when the fields in the two formats to be converted to each other are functionally the same but have different bit patterns.
[0119]
For example, in the format of FIG. 12A, as described above, “1” is active and “0” indicates inactive, whereas in the format of FIG. 12B, “0” is active and “1”. When “” indicates inactive, in the bit conversion process, as an example, the bit pattern “100” (= F11F12F13) of the control code S13 is converted into the bit pattern “011” (= F21F22F23).
[0120]
In addition, the bit conversion process needs to be executed purposely, similarly to the invalid field insertion process.
[0121]
That is, the bit conversion process may include a process of replacing an active state of a field having a certain function in the conversion source format with an active state of a field having a different function in the conversion destination format.
[0122]
For example, the format shown in FIG. 12B in which the three intermediate positions A to C can be designated is converted into a format (not shown) in which the five intermediate positions A1 to E1 can be designated and designated by A to C. If there is no field that specifies the shutter opening of exactly the same size between the intermediate position specified by A1 to E1 and activating the field that specifies the closest size opening, Format conversion may be performed.
[0123]
When the re-encoded signal RD is generated by performing the encoding method conversion after performing the rearrangement process and the bit conversion process as described above, as shown in FIG. The remodulation unit 22 is supplied.
[0124]
The remodulation unit 22 is a part that executes remodulation of the demodulated signal DS obtained by demodulation by the demodulation unit 20. Here, the remodulation is the same operation as the normal modulation performed by the modulation processing unit 37 (see FIG. 10) of the transmitter 32, and a predetermined frequency is applied to the carrier wave of the target frequency fc1 (which corresponds to the frequency of SL2). In this modulation scheme, information corresponding to the re-encoded signal RD is put on. Since the remodulation process is necessary to perform modulation system conversion and frequency conversion, when any one of these is converted, the remodulation process is required.
[0125]
For example, even if it is not necessary to convert because the modulation method and the format are the same, if it is necessary to convert only the frequency, the remodulation process is substantially executed only for the frequency conversion. This is because it is generally considered difficult to convert only the frequency alone without distorting the waveform.
[0126]
Therefore, if there is no need for conversion processing at the decoding stage such as format conversion within the wireless remote control system 30 (when the formats of SL1 and SL2 are the same), the decoding unit 24, the re-encoding unit 25, The part corresponding to the determination process at the decoding stage in the determination unit 21 can be omitted.
[0127]
The remodulation unit 22 is equipped with a buffer memory (remodulation unit reception buffer) that temporarily stores the recoded signal RD supplied from the recoding unit 25 as necessary. This is because, like the re-encoding unit reception buffer, timing adjustment is performed in preparation for a delay time until the processing in the determination unit 21 for the corresponding decoded signal DC is completed.
[0128]
However, the reception buffer is not necessarily provided in both the re-encoding unit 25 and the re-modulation unit 22, and may be provided in only one of them. This is because even if it is provided only on one side, it is possible to prevent unnecessary output of the remodulated signal RS that may cause interference due to the simultaneous transmission described above.
[0129]
When the remodulation unit 22 that has received the remodulation permission signal RS executes remodulation, a remodulation signal RS is generated and supplied to the amplification unit 23.
[0130]
The amplifying unit 23 performs necessary RF (high frequency) amplification on the remodulated signal RS and converts it to the intermediate signal BS2.
[0131]
Such a conversion processing unit 12 can be configured using, for example, a DSP (digital signal processor).
[0132]
In general, a DSP is an LSI developed as small and inexpensive hardware capable of executing a large number of product-sum operations in real time in order to perform digital signal processing. Since the DSP is also programmable, it can be applied to various signal processing.
[0133]
Next, FIG. 10 shows an internal configuration of the second-development type transmitter 31 described above. The internal configuration of the third development type transmitter 32 is the same as this.
[0134]
(A-1-3) Internal configuration of secondary development type transmitter
In FIG. 10, the secondary development type transmitter 31 includes a key operation unit 35, a transmission control unit 36, a modulation processing unit 37, a wireless transmission unit 38, and a power supply unit 39.
[0135]
The key operation unit 35 detects three operation keys (operation buttons) that can be operated from the outer surface of the second-development-type transmitter 31 body, and a key corresponding to the operation state by detecting the operation state of the operation key. The signal supply unit supplies the operation signal KM to the transmission control unit 36.
[0136]
Note that the number of keys may be more or less than three as required. However, an increase in the number of keys is disadvantageous in terms of cost and downsizing of the body of the secondary development type transmitter 31. On the other hand, a decrease in the number of keys generally requires a necessary shutter operation ( It is necessary to specify at least three types of opening operation, closing operation, or stopping operation. (In some cases, the system configuration may be such that a partial opening operation indicating partial opening may be specified from the beginning. In this case, there are four shutter operations)), which means that the key operation procedure for performing the above operation becomes complicated.
[0137]
The transmission control unit 36 that receives the key operation signal KM from the key operation unit 35 is a part that executes an encoding process or the like according to the contents of the key operation signal KM to form a transmission frame of a predetermined format.
[0138]
When the logical structure of the format is different between the second development type transmitter and the third development type transmitter, the contents of processing (encoding processing, etc.) performed by the transmission control unit 36 are different. It will be.
[0139]
The encoded signal CS output from the transmission control unit 36 is subjected to predetermined modulation by the modulation processing unit 37 and converted into a modulation signal MS, and the modulation signal MS is supplied to the radio transmission unit 38.
[0140]
The wireless transmission unit 38 includes a transmission antenna unit, filter means, necessary RF amplification means, and the like, and has the same configuration as the first and second wireless transmission units 14 and 15 in the wireless transmission device 10 described above. It is a part with. However, since the wireless transmission device 10 is assumed to be installed and used in a fixed manner, the antenna does not necessarily have to be built-in, but the antenna of the transmitter 31 is usually built-in.
[0141]
When such a transmitter 31 (32) is configured with a palm size that is compact enough to fit in the user's palm, the user's posture when operating the remote control transmitter 31 is also free and user-friendliness is improved, which is preferable. Because.
[0142]
Of course, if necessary, the transmitter 31 can be fixedly installed, for example, by being mounted on a car. In that case, the necessity for the antenna to be built-in is reduced.
[0143]
In the present embodiment, it is assumed that the transmission pattern of the antenna in the wireless transmission unit 38 of the transmitter 31 has an omnidirectional circular pattern at least in a horizontal plane, similarly to the pattern of the wireless transmission device 10.
[0144]
If necessary, it is possible to employ a relatively sharp directivity pattern in a specific direction for the antenna in the wireless transmission unit 38, but the transmitter 31 is not necessarily the antenna of the receiver (for example, 33A) or wireless transmission. Since it is not always used in a place where the line of sight of the antenna of the device 10 can be obtained, if the transmission pattern is given a steep directivity, the shutter operation can be performed only in a specific direction. It becomes a bad remote control transmitter.
[0145]
The power supply unit 39 provided in the transmitter 31 includes, for example, a small and thin battery, and includes a key operation unit 35, a transmission control unit 36, a modulation processing unit 37, and a wireless transmission unit 38. This is the part that supplies the necessary power PW.
[0146]
In FIG. 2 described above, in this embodiment, the size and shape of the reception area of each receiver 33A, 33B, 34A, and 34B are the same as the size and shape of the transmission / reception area E1 of the wireless transmission device 10. .
[0147]
Of course, if necessary, the size and shape of the reception areas of the receivers 33A, 33B, 34A, and 34B can be made different from those of the transmission / reception area E1, and can also be made different between the receivers.
[0148]
The operation of the present embodiment having the above configuration will be described below.
[0149]
(A-2) Overall operation of the first embodiment
As a premise, a user who has previously remotely operated the shutter of the garage G1 where the secondary development type receiver 33A is installed by using the secondary development type transmitter 31 with a remote control is the old secondary development type. It is assumed that the transmitter 31 has been replaced with a third-development type transmitter 32 because the transmitter 31 has been damaged beyond repair. Here, the newly-developed third-development type transmitter 32 is referred to as a transmitter 32Y.
[0150]
In FIG. 2, it is assumed that the transmitter 32Y located in the transmission / reception area E1 of the wireless transmission device 10 transmits the wireless signal SL2. As shown in the figure, the distance between the transmitter 32Y and the receiver 33A is sufficiently close, so that the radio signal SL2 can reach the antenna of the receiver.
[0151]
However, since the receiver 33 can normally process only the specification of the radio signal SL1, it cannot perform the above-described ID collation or the like. Depending on the radio signal SL2 that has arrived directly, the user of the transmitter 32Y The desired shutter operation cannot be performed.
[0152]
On the other hand, the wireless signal SL2 wirelessly transmitted from the transmitter 32Y reaches the wireless transmission device 10 and is captured by the wireless reception unit 11 of the wireless transmission device 10.
[0153]
Thereby, the intermediate signal BS2 output from the wireless reception unit 11 is supplied to the first conversion processing unit 12 and the second conversion processing unit 13, but the first conversion processing unit 12 does not operate by the above-described operation stop function. Therefore, the intermediate signal BS2 is not output from the first conversion processing unit 12.
[0154]
On the contrary, since the second conversion processing unit 13 operates without being stopped by the operation stop signal, the second conversion processing unit 13 converts the intermediate signal BS2 into BS1 and outputs it. The output intermediate signal BS2 is wirelessly transmitted from the second wireless transmission unit 15 as a wireless signal SL1.
[0155]
This radio signal SL1 reaches the receiver 33A and is normally received by the receiver 33A whose specifications match SL1, and a series of processes including the ID collation are normally executed. Thereby, in the garage G1, the normal shutter operation as intended by the user of the transmitter 32Y is realized.
[0156]
This is an operation corresponding to FIG.
[0157]
If the second development type receiver, rather than the second development type transmitter, suffers an irreparable damage, the receiver is replaced with the third development type receiver 33. The operation corresponding to FIG. 9A is performed, and also in this case, the function of the wireless transmission device 10 enables normal communication between the transmitter and the receiver.
[0158]
On the other hand, it is assumed that there are also users who do not need to undergo the conversion process by the wireless transmission device 10 in the transmission / reception area E1 and the vicinity thereof in FIG.
[0159]
Since the transmitter 31 </ b> X and the receiver 33 </ b> B installed in the garage GP are also the old secondary development type, the user of the transmitter 31 </ b> X can perform normal communication without going through the wireless transmission device 10. Therefore, the transmitter 31X and the receiver 33B can communicate from outside the area E1, as shown in FIG.
[0160]
Assume that the transmitter 31Z located in the area E1 wirelessly transmits the radio signal SL1 when the transmitter 31X and the receiver 33B are communicating.
[0161]
Since the transmitter 31Z is located in the area 31, the radio signal SL1 is effectively captured and processed by the radio transmission device 10. At this time, only the SL2 generated by converting the SL1 is transmitted from the wireless transmission device 10 by the operation stop function described above, and unnecessary SL1 is not transmitted. Therefore, the receiver 33B does not cause interference due to simultaneous transmission. The influence can be reduced.
[0162]
Even in this case, interference due to the radio signal SL1 that directly arrives at the receiver 33B from the transmitter 31 may occur, but SL1 that arrives directly via the radio transmission apparatus 10 and the SL1 that arrives via the radio transmission apparatus 10 The degree of interference is reduced compared to the case of receiving both interferences.
[0163]
The wireless remote control system 30 described above can be used as it is as the transmitters 31 and 32, and has an excellent feasibility. However, by slightly modifying the interference transmitter, interference can be achieved. Can be drastically reduced.
[0164]
That is, a conversion necessity signal (for example, “1” indicates that conversion processing is required and “0” indicates that conversion processing is not necessary) that specifies whether the wireless transmission device 10 needs to support conversion processing. This conversion necessity signal may be 1 bit) mixed in the radio signals SL1 and SL2 transmitted from the transmitters 31 and 32. The wireless transmission device 10 performs the operation as described above only when it is determined that the conversion process is necessary based on the conversion necessity signal, and when it is determined that the conversion process is not necessary, the wireless transmission device 10 does not perform the conversion process and performs the conversion process. The wireless signal obtained as a result of is not transmitted.
[0165]
This is when there is a strong tendency that a large number of communications between the transmitters 31 and 32 and the receivers 33 and 34 are simultaneously performed in the area E1 and its surroundings, such as when there are many users sharing the wireless transmission device 10. Is considered particularly effective.
[0166]
(A-3) Effects of the first embodiment
As described above, according to the present embodiment, compatibility can be provided between a remote control transmitter and a receiver having different specifications.
[0167]
As a result, it is possible to maintain normal communication even after replacing only one of the transmitter and the receiver having the matching specifications, and it is economical and flexible.
[0168]
In other words, in this embodiment, when viewed from the transmitter side, a receiver (for example, 33A) that should be able to handle only one radio signal (for example, SL1) normally transmits a plurality of radio signals (SL1 and SL2). This means that the receiver side is equipped with a high function for providing a plurality of interfaces.
[0169]
The same can be said when the transmitter side is viewed from the receiver side. In this embodiment, a transmitter or receiver that actually has only a conventional function is substantially enhanced. be able to.
[0170]
In addition, since the wireless transmission device of the present embodiment can be shared by a plurality of sets of transmitters and receivers, the enhancement of functionality is achieved when the receiver itself is equipped with a plurality of interfaces, or the transmitter itself has a plurality of interfaces. This is achieved more efficiently than when equipped with.
[0171]
In addition, since the wireless transmission device of the present embodiment is equipped with an amplifying unit (23, etc.), it is possible not only to perform conversion processing but also to extend the communicable distance between the transmitter and the receiver. Is possible.
[0172]
From the viewpoint of extending the communication distance, as described above, it is not always preferable to consider that all receivers are located as close to the center of the reception area (E1) as possible. More effective extension is possible when you are far away.
[0173]
(B) Second embodiment
Below, only the point from which this embodiment is different from 1st Embodiment is demonstrated.
[0174]
In the first embodiment, there are two conversion processing units (12 and the like) installed in the wireless transmission device. However, in this embodiment, N (N is a natural number, where N ≧ 3). .
[0175]
(B-1) Configuration and operation of the second embodiment
FIG. 3 shows an internal configuration of the wireless transmission device 40 of this embodiment.
[0176]
In FIG. 3, the functions of the constituent elements 11, 12, 13, 14, and 15 denoted by the same reference numerals as those in FIG. 1 are the same as those in FIG.
[0177]
Therefore, the wireless transmission device 40 of this embodiment is different from the wireless transmission device 10 in the Nth conversion processing unit 41, the Nth wireless transmission unit 42, the N-1th conversion processing unit (not shown), and the Nth. -1 It has a configuration to which an unrelated transmission unit (not shown) is added.
[0178]
Thus, by performing conversion processing between a large number of specifications, the wireless transmission device 40 becomes more efficient and economical.
[0179]
In the case of the present embodiment, conversion processing units 12, 13, 41, etc. only for the types of conversion processing executed by the wireless transmission device 40 are provided. The type N of conversion processing is used in the area E1. There is a relationship of the following expression (1) with the radio signals SL1, SL2, SL3, SL4,... SLM (M is a natural number).
[0180]
N = M × (M−1) (1)
In this case, each of these conversion processing units is SL1 → SL2 conversion process, SL1 → SL3 conversion process, SL1 → SL4 conversion process,..., SL1 → SLM conversion process, SL2 → SL1 conversion process, SL2 → SL3 conversion process, SL2 → SL4 conversion process,... SL2 → SLM conversion process, SL3 → SL1 conversion process,..., SLM → SLM-1 conversion process become.
[0181]
When N ≧ 3 and a large number of conversion processing units (12, etc.) are mounted in one wireless transmission device 40, the utilization efficiency of components such as the wireless receiving unit 11 other than the conversion processing unit, the power supply unit, and the housing Therefore, the wireless transmission device 40 can be configured at a low price for the function.
[0182]
(B-2) Effects of the second embodiment
As described above, according to the present embodiment, it is possible to obtain the same effect as that of the first embodiment.
[0183]
In addition, in this embodiment, it is possible to increase the utilization efficiency other than the conversion processing unit in the wireless transmission device.
[0184]
As a result, it is possible to provide a wireless transmission device that is inexpensive for its function.
[0185]
(C) Third embodiment
In the following, only the differences of the present embodiment from the first and second embodiments will be described.
[0186]
In the second embodiment, the conversion processing unit (12 or the like) mounted on the wireless transmission apparatus is fixedly mounted. However, the present embodiment is characterized in that it can be attached and detached.
[0187]
(C-1) Configuration and operation of the third embodiment
FIG. 4 shows the internal configuration of the wireless transmission device 50 of this embodiment.
[0188]
In FIG. 4, the functions of the constituent elements 11, 14, and 15 denoted by the same reference numerals as those in FIG. 3 are the same as those in FIG.
[0189]
The conversion processing function itself of the first conversion processing unit 52 is the same as that of the first conversion processing unit 12, and the conversion processing function itself of the second conversion processing unit 52 is the same as that of the second conversion processing unit 13. Yes, the conversion processing function itself of the Nth conversion processing unit 54 is the same as that of the Nth conversion processing unit 41.
[0190]
However, in this embodiment, the 1st-Nth conversion process parts 52-54 become a structure which can be attached or detached with respect to contact 52A-54A, 52B-54B.
[0191]
FIG. 5 shows a configuration example of the wireless transmission device 50 when N = 4.
[0192]
In FIG. 5, the wireless transmission device 50 includes a housing 50A, a lid 50B, a conversion processing unit mounting opening 50C, and antennas 11A, 14A, 15A, 16A, and 42A.
[0193]
Of these, the lid 50B is a lid that closes the conversion processing unit mounting opening 50C when rotated in the direction of the arrow D1, and opens the conversion processing unit mounting opening 50C when rotated in the direction of the arrow D2. In addition, a lock mechanism (not shown) that can be locked in the closed state when closed is provided.
[0194]
Four slots LT1 to LT4 are provided in the conversion processing unit mounting opening 50C. A connector (not shown) having the contacts 52A and 52B is built in the slot LT1, and similarly, a connector having the contacts 53A and 53B is built in the slot LT2. A connector having a corresponding contact (not shown in FIG. 4) is also built in the slot LT3, and a connector having the contacts 54A and 54B is built in the slot LT4. Yes.
[0195]
In this configuration example, the second conversion processing unit 53 is accommodated in a conversion processing card 53D having a card type outer shape. The conversion processing card 53D includes a connector 53C, and is moved in the direction of the arrow D3 indicated by a one-dot chain line and inserted into the slot LT2, so that the connector 53C contacts and is fixed to the contacts 53A and 53B. It has a structure.
[0196]
The same applies to conversion processing units other than the second conversion processing unit 53. For example, the Nth (N = 4) conversion processing unit 54 is accommodated in the conversion processing card 54D.
[0197]
The conversion processing card 55D is a conversion processing card that houses a third conversion processing unit 55 that is not shown in FIG.
[0198]
In the state shown in the figure, the conversion processing cards 55D and 54D are mounted in the slots LT3 and LT4, and the conversion processing card (52D) containing the first conversion processing unit 52 is removed from the slot LT1.
[0199]
The advantage of this embodiment is that a new conversion process can be performed by exchanging only the conversion process card.
[0200]
For example, if a wireless transmission device that supports conversion between the old and new secondary development types and the third development type is installed, a fourth development type transmitter or newer transmitter than the third development type When the fourth-order development type receiver appears, the radio transmission apparatus having the structure of the first embodiment or the second embodiment is developed in order to cope with the fourth development type. It will be necessary to replace it with a device that can handle the mold.
[0201]
On the other hand, in the wireless transmission device 50 of this embodiment, it is possible to cope with the appearance of the fourth development type only by exchanging the conversion processing card.
[0202]
Also, when used for a long time, it may be obvious that there is no single user who may use a very old type transmitter or receiver (for example, the first development type). obtain. In such a situation, it is excessive function and completely useless to continue to equip the wireless transmission device up to the conversion processing unit related to the first development type. Considering that the standby current continues to be consumed even if it is not used, it is better to be able to remove the conversion processing unit that has ceased to be used from the wireless transmission apparatus.
[0203]
In the case of the first embodiment and the second embodiment, there is no choice but to continue to equip an excessive function such as a conversion processing unit related to the primary development type in the present embodiment. At that time, it is possible to remove only the conversion processing card related to the first development type from the corresponding slot and use the slot for a new conversion processing card, which is highly flexible. .
[0204]
As is clear from FIG. 6, when the entire conversion processing unit is accommodated in the conversion processing card of the present embodiment, it is input to the conversion processing card (53D, etc.) via the contact (53A, etc.). Since the intermediate signal and the intermediate signal output from the conversion processing card (53D, etc.) via the contact (53B, etc.) are both high-frequency signals, a wide wiring pattern is required. Are subject to fairly severe restrictions.
[0205]
Therefore, the structure of the connector (53C or the like) on the conversion processing card side or the connector on the slot (LT2 or the like) side needs to be compatible with high frequencies.
[0206]
Further, if necessary, all functions of the conversion processing unit (12, etc.) may not be accommodated in the conversion processing card, but only some functions may be accommodated.
[0207]
For example, only the functions of the determination unit (part corresponding to the determination process at the decoding stage) 21, the decoding unit 24, and the re-encoding unit 25 of FIG. 6 can be accommodated in the conversion processing card. In this case, the input to the conversion processing card and the output from the conversion processing card are the demodulated signal DS, the decoded signal DC, the format signal FS, and the remodulation permission signal RA. It is possible to avoid mounting difficulties such as output.
[0208]
Of course, the package that accommodates the modulation processing unit does not necessarily have a card-shaped outer shape like a modulation processing card.
[0209]
Further, the antenna 11A shown in FIG. 5 is an antenna that forms all or part of the antenna unit in the wireless receiver 11, and similarly, the antennas 14A, 15A, 16A, and 42A are connected to the wireless transmitters 14, 15, .., 42 are antennas that constitute all or part of the antenna units in.
[0210]
The antennas 14A, 15A, 16A, and 42A do not necessarily have to be directly attached to the housing 50A as shown in the drawing, and may be installed at positions separated from the housing 50A by connecting with cables or the like.
[0211]
However, in this case, since the antenna position is not the position of the housing 50A but the center of the area E1 described above, strictly speaking, there are different areas corresponding to the number of antenna positions.
[0212]
Further, the shape of the antenna is not limited to the antenna having a rod-shaped outer shape as shown in FIG. Depending on the frequency, for example, an inverted F antenna can be used.
[0213]
(C-2) Effects of the third embodiment
As described above, according to the present embodiment, it is possible to obtain an effect equivalent to that of the second embodiment.
[0214]
In addition, in the present embodiment, it is possible to cope with different conversion processes by exchanging only the conversion process card according to the user's desire, so that flexibility is high.
[0215]
Also, in the sense that the conversion processing desired by the user can be realized simply by purchasing a conversion processing card, the utilization efficiency of the components other than the conversion processing unit is further increased than in the second embodiment, and the necessary functions are provided. Can be realized at a low price.
[0216]
(D) Other embodiments
In the first embodiment, it is difficult to transmit the personal identification code S23 and the control code S25 at the same time. However, when the number of operation keys provided in the key operation unit 35 is sufficient, etc. May have a system configuration in which these can be transmitted simultaneously using the same format.
[0217]
In the first embodiment, it has been described that it is preferable that each remote control receiver is not equipped with the multiple format compatible function. However, if necessary, each remote control receiver is equipped with the multiple format compatible function. Alternatively, in the wireless remote control system 30, a remote control receiver equipped with a function corresponding to a plurality of formats and a remote control receiver not equipped may be mixed.
[0218]
Further, in the first to third embodiments, the “development type” means a new type and an old type of a garage shutter remote control receiver and remote control transmitter, but means a different type of device. It can also be used as a concept.
[0219]
For example, the relationship between a remote control transmitter and remote control receiver of a certain garage shutter and a remote control transmitter and remote control receiver of a blind shutter is the same as the relationship between the second development type and the third development type described above. , It can be considered as one of the cases where the development type is different.
[0220]
Therefore, according to the present invention, it is possible to operate a blind shutter remote control receiver using, for example, a garage shutter remote control transmitter.
[0221]
In this case, for example, the opening angle for each slat in the blind shutter can be changed by using the “ventilation” field F24 in FIG.
[0222]
On the other hand, in the format shown in FIG. 12, there is no “development type” field for displaying the development type itself, but the “development type” field is provided in a format used by a plurality of development types. Also good.
[0223]
In this case, the memory in the wireless transmission device 10 can be equipped with a development type conversion table so that conversion between development types can be managed in an integrated manner.
[0224]
In this case, the wireless transmission device 10 can immediately recognize the development type of the conversion source (and / or the conversion destination) simply by examining the “development type” field. Can be reduced. This is considered to be particularly effective when three or more development types are mixed in the system 30.
[0225]
In addition, both the conversion source development type and the conversion destination development type (at least the conversion destination development type) may be specified using the “development type” field. As a result, when there are three or more development types in the system 30, it is possible to specify only one development type as the conversion destination, so that the influence of interference in the system 30 can be greatly reduced. Is considered possible.
[0226]
Further, in the first embodiment, the conversion processing units 12 and 13 of the wireless transmission apparatus are equipped with the demodulation unit 20, the decoding unit 24, the determination unit 21, and the like, but only the amplification unit 23 is mounted in the conversion processing unit. Such a configuration is also possible. This makes it possible to perform a shutter operation from a distance longer than before even when transmission power within the regulations of radio wave regulations is used.
[0227]
The first embodiment corresponds to the case where N is N = 2, and the second and third embodiments are cases where N ≧ 3, but the present invention is a case where N = 1. Of course, it can also be applied to.
[0228]
For example, when it is clear that only the conversion process from the specification of the second development type radio signal SL1 to the third development type radio signal SL2 is necessary and other conversion processes are unnecessary, the conversion process is performed. This is because a sufficient effect can be obtained even if a wireless transmission device including only one corresponding conversion processing unit is used as the unit.
[0229]
In the case of N = 1 or the like, and when the wireless transmission apparatus is used by only one user, the above-described reception (transmission) area can be set sufficiently small. For example, in such a case, when the wireless transmission device is attached to the shutter storage box 60 as shown in FIG. 11, the distance to the receiver 34 (33) is usually several meters, so the number is about several meters. It is sufficient to set the area.
[0230]
Note that the antennas of the wireless receiver (such as 11) and the wireless transmitter (such as 14) of the first and second embodiments having a substantially non-directional reception pattern in the horizontal plane described above have a simple structure. A monopole antenna can be used. The inverted F antenna is also a kind of monopole antenna.
[0231]
Of course, if more reliability is desired, a dipole antenna, a sleeve antenna, or the like can be used.
[0232]
In addition, when the wireless transmission device of the first to third embodiments is equipped with the above-described ID registration function for registering the ID and the ID collation function for collating the registered ID, the wireless transmission device has the registered ID. The wireless signal transmitted by the transmitter that does not display is not converted, and only the wireless signal transmitted by the transmitter displaying the registered ID is converted, so the wireless signal transmitted by an irrelevant user is converted. Thus, the influence of interference in the area E1 can be reduced.
[0233]
Even if the wireless transmission device is not equipped with these ID registration functions and ID verification functions, if the receiver is equipped with these functions, a person other than the original user can operate the shutter. Can be prevented.
[0234]
In addition, when the wireless transmission device is equipped with an ID registration function and an ID collation function, if only a user who requires conversion processing by the wireless transmission device registers ID in the wireless transmission device, the ID is It has the same function as the conversion necessity signal.
[0235]
However, since the number of ID bits is much larger than 1 bit, the function for processing the conversion necessity signal (1 bit) can be configured on a smaller scale than the ID registration function or ID collation function. High nature.
[0236]
However, since ID registration and ID collation are functions that are normally provided in the receivers 33 and 34, there is a manufacturing advantage that the same functional block (circuit configuration) as that of the receiver is simply applied to the wireless transmission device as it is. is there.
[0237]
In the first to third embodiments, the radio signal is a radio wave of about 300 MHz or 400 MHz, but the scope of application of the present invention is not limited to this. Higher and lower frequency radio waves may be used, and infrared rays may be used.
[0238]
In addition to the usage methods described in the first to third embodiments, the wireless transmission device can be used when, for example, the transmitter and the receiver are in a positional relationship where the line of sight cannot be obtained. It can be considered that the antenna is located at a position where a line of sight can be obtained for both the transmitter and the receiver. In this case, the effect that the transmitter and the receiver can communicate with each other under the same favorable conditions as when a line of sight is obtained between the transmitter and the receiver can be expected through the wireless transmission device. .
[0239]
This is particularly effective when radio waves or infrared rays having a high frequency of about 1 GHz or more are used instead of the radio signals of the first to third embodiments. This is because, in addition to infrared rays, radio waves with a high frequency of 1 GHz or more also exhibit the same properties as light, and communication quality tends to be extremely lowered when a line of sight cannot be obtained.
[0240]
In the first to third embodiments, the present invention is applied to the garage shutter. However, the present invention can also be applied to shutters other than the garage shutter.
[0242]
In the present invention, , Legend In a communication system of a switchgear comprising a transmission device, a remote control transmitter for transmitting a transmission source radio signal including an operation state instruction signal for instructing an operation state of the switchgear, and a remote control receiver facing the remote control transmitter The remote control receiver may be installed in the vicinity of the arrival limit in the arrival area where the transmission destination radio signal of the transmission apparatus reaches.
[0243]
This is an effective configuration when it is desired to increase the communicable distance between the remote control transmitter and the remote control receiver.
[0244]
Furthermore, in the above description, the direction of information flow is basically a unidirectional direction from the remote control transmitter to the remote control receiver, although a wireless transmission device is interposed as necessary. Is not limited to such unidirectional communication.
[0245]
That is, the remote control transmitter is replaced with an operation transmitter / receiver that is a remote operation transmitter / receiver instead of a transmission dedicated communication device, and the remote control receiver is not a reception dedicated communication device but a remote operated transmitter / receiver. It may be replaced with an operated transceiver to perform full-duplex communication or half-duplex communication with a wireless transmission device as necessary.
[0246]
In this case, the wireless transmission device receives and processes the radio signal received from the operated transceiver, and transmits the radio signal to the operated transceiver, and receives and processes the radio signal received from the operated transceiver. It will be equipped with a function to wirelessly transmit to the transceiver.
[0247]
At this time, the signal included in the radio signal from the operation transmitter / receiver to the operated transmitter / receiver may be an operation state instruction signal instructing the shutter operation or the like, and conversely from the operated transmitter / receiver to the operation transmitter / receiver. The signal included in the wireless signal may be an operation state report signal for reporting the current state of the shutter operation.
[0248]
The operation state report signal indicates that the shutter operation state at that time is, for example, “fully open state”, “fully closed state”, “partially open state (partially opened and stopped)”, “ It may be a signal indicating that “opening operation”, “closing operation”, “abnormality occurrence”, or the like.
[0249]
In this case, by receiving the operation state report signal, the user of the operation transceiver can recognize, for example, the “full open state”.
[0250]
Further, the remote control transceiver can be replaced with a portable receiver, and the operated transceiver can be replaced with a fixed transmitter. In this case, the information flows in a single direction from the fixed transmitter toward the portable receiver. A system configuration in which only such unidirectional communication is always performed may be employed, and a system configuration in which such unidirectional communication may be performed only when necessary according to mode switching may be employed.
[0251]
That is, the operation transceiver and the operated transceiver may be configured to perform such unidirectional communication only when necessary according to mode switching.
[0252]
As described above, the format used in the secondary development type transmitter 31 and receiver 33 is the format shown in FIG. 12A, and is used in the tertiary development type transmitter 32Y and receiver 34. When the format to be performed is the format shown in FIG. 12B, the wireless transmission device 10 is not provided with a function of returning a verification result of a password (that is, a bidirectional communication function) or a function of registering a password. Instead of the secondary development type receiver 33, these functions may be realized.
[0253]
In other words, the present invention is a communication signal including an operation state instruction signal for instructing an operation state of the opening / closing body, and is a first communication signal transmitted by the non-opening / closing body side communication device and / or an operation of the opening / closing body. A receiving means for receiving a second communication signal transmitted from the switching body side communication device, which is a communication signal including an operation state report signal for reporting the state, and the first communication for receiving the switching body side communication device. Transmitting means for transmitting a third communication signal corresponding to the signal and / or transmitting a fourth communication signal corresponding to the second communication signal in order to cause the non-opening / closing body-side communication device to receive the third communication signal; And a transmission device characterized in that it is interposed between the non-opening / closing body-side communication device and the opening / closing body-side communication device.
[0254]
In the above description, the case where the switching body side communication device is a remote controlled device and the non-opening body side communication device is a remote control device has been described. However, the present invention is not limited to this case. Absent.
[0255]
There may be a case where the non-opening / closing body-side communication device is a reception-only device that performs only reception.
[0256]
This receiving-only device is for maintenance purposes, for example, and the operation management information (opening / closing position of the opening / closing member, the number of opening / closing operations, failure information related to opening / closing, etc.) Etc.), and the reception result may be displayed.
[0257]
As for the transmission timing at which the switching body side communication device transmits this operation management information, for example, the day of the week or the time is fixed in advance, or any timing at which a transmission instruction is given by wire is transmitted. It is also possible to set timing.
[0258]
Further, the specific content of the operation management information transmitted at the transmission timing may be fixedly determined in advance, or only the content instructed by wire may be transmitted.
[0259]
Further, as an advantage of using the transmission device of the present invention in relation to the reception dedicated device, when the switching body side communication device is new and old, the reception dedicated device can be unified to a new type, or the operation management information It is conceivable that the collectable range (geographical area) can be expanded.
[0260]
In the above description, the case of mainly relaying a radio signal has been described. However, the present invention can also be applied to the case of relaying a wired signal.
[0261]
As an example corresponding to this, for example, a system having a configuration in which the non-opening / closing body-side communication device is a portable device for wired communication and is mounted in a predetermined slot to perform wired communication when communicating.
[0262]
Even in the case of wired communication, since the switching body side communication device and the non-opening body side communication device cannot communicate normally unless the specifications match, the present invention may be applicable to wired communication.
[0263]
In this case, the opening / closing body-side communication device is connected to the transmission device in addition to the slot. When the development type of the open / close body side communication device and the non-open / close body side communication device (portable device) is different, the user of the mobile device recognizes that normal communication cannot be performed even when the mobile device is installed in the original slot. In this case, normal communication is performed by mounting in the slot of the transmission apparatus.
[0264]
The present invention can be applied not only to a shutter but also to a remote control system for other opening / closing devices such as doors, windows, overhead doors and the like.
[0265]
【The invention's effect】
As explained above, the first The second According to this invention, it is possible to perform relaying according to the received communication signal and the transmitted communication signal.
[0266]
Also, Book In the invention, the communication signal can be converted in specifications, and compatibility can be provided between the non-opening / closing body side communication device and the opening / closing body side communication device having different specifications.
[0267]
As a result, normal communication can be maintained even after replacing only one of the non-opening / closing body side communication device and the opening / closing body side communication device whose specifications are matched, which is economical and flexible.
[Brief description of the drawings]
FIG. 1 is a block diagram illustrating a configuration of a main part of a wireless transmission device according to a first embodiment.
FIG. 2 is a schematic diagram showing the overall configuration of the wireless remote control system of the first embodiment.
FIG. 3 is a block diagram illustrating a configuration of a main part of a wireless transmission device according to a second embodiment.
FIG. 4 is a schematic diagram illustrating a configuration of a main part of a wireless transmission device according to a third embodiment.
FIG. 5 is an external view showing a configuration example of a third embodiment.
FIG. 6 is a schematic diagram illustrating a configuration of a conversion processing unit according to the first to third embodiments.
FIG. 7 is an operation explanatory diagram of the first embodiment.
FIG. 8 is an operation explanatory diagram of the first embodiment.
FIG. 9 is an operation explanatory diagram of the first embodiment.
FIG. 10 is a schematic diagram illustrating a configuration of a main part of the transmitter according to the first embodiment.
FIG. 11 is a schematic diagram illustrating a configuration example of the first embodiment.
FIG. 12 is a schematic diagram showing a format structure used in the first to third embodiments.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10,40,50 ... Wireless transmission apparatus, 11 ... Wireless reception part, 12, 13, 41, 52-54 ... Conversion processing part, 14, 15, 42 ... Wireless transmission part, 20 ... Demodulation part, Determination part, 22 ... Remodulation unit, 23 ... amplification unit, 24 ... decoding unit, 25 ... recoding unit, 30 ... wireless remote control system, 31, 31X, 31Z, 32, 32Y ... transmitter, 33, 33A, 33B, 34, 34A, 34B ... Receiver.

Claims (4)

A first non- opening / closing body - side communication device that transmits a first communication signal whose specifications relating to the communication signal match the first opening / closing body - side communication device, and a second from the corresponding second non-opening / closing body-side communication device Transmission intervening in communication with the second switching body side communication device in which the specifications related to the communication signal are matched and the specifications related to the first communication signal from the first non-opening body side communication device are not matched A device,
First receiving means for receiving a first communication signal in accordance with a first format having a plurality of fields including open, closed, and stop fields from the first non- opening / closing body - side communication device;
Transmitting a second communication signal in accordance with a second format having a plurality of fields including open, closed, and stop fields to the second opening / closing body side communication device, and according to the first format A transmission apparatus comprising: a first transmission unit having a conversion processing unit that generates the second communication signal by shifting, deleting, or replacing each field of the received first communication signal . The conversion processing means replaces an active state of a field having a predetermined function of the received first communication signal according to the first format with an active state of a field having another function in the second format. The transmission apparatus according to claim 1, wherein the second communication signal is generated. Reception, format conversion, and transmission of a communication signal including an operation state report signal for reporting the current state of the opening / closing body operation from the second opening / closing body side communication apparatus to the first non-opening / closing body side communication apparatus. The transmission apparatus according to claim 1, further comprising reverse relay means for performing the transmission. A transmission device according to any one of claims 1 to 3 , the second opening / closing body side communication device, and the first non-opening / closing body side communication device, wherein the first and second communication signals are radio signals. A communication system for a switchgear using
A communication system for a switchgear, wherein one or a plurality of the second switchgear-side communication devices are installed in a reach area where the second communication signal from the transmission device reaches.

Images