JP3462756B2 - Elevator transmission control device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator transmission control device for setting parameters of landing equipment at the time of tailing or maintenance replacement of an elevator.

[0002]

2. Description of the Related Art In recent years, elevators are equipped with an elevator control device in a machine room to perform data transmission with car equipment installed in a car and landing equipment installed in a hall. That is, a control unit having a microcomputer is provided in the car equipment and the landing equipment, data transmission is performed by serial transmission with the elevator control device, and each processing is shared while exchanging necessary data. .

[0003] For example, in response to a car hall call, the controller of the hall equipment determines that the hall call button of the hall equipment installed on each floor hall has been pressed by the user, and the controller of the hall equipment controls. The data is transmitted from the judgment result to the elevator control device installed in the machine room, and the elevator control device operates the car to the floor.

Since as many hall equipments as the number of service floors are installed, transmission between the elevator control device and the hall equipments is performed by the elevator control device as a master unit and a plurality of hall devices as slave units respectively. An elevator transmission control device is often configured by a connection method called a line. In such a configuration, each slave unit on the same transmission path has a unique identification number, that is, an identification address, so that an error such as a data collision can be avoided.

As a transmission system of such an elevator transmission control device, a so-called message transmission system (also called a packet transmission system) and a scan transmission system are mainly used. In the message transmission method, the identification address of the device is added to a part of the data string to be transmitted and the data is transmitted to the transmission path. Generally, the identification address is added to the beginning. This transmission method has an advantage that various data can be transmitted and received although the procedure tends to be complicated.

On the other hand, in the scan transmission method, a reply device is predetermined for a certain identification address, and virtually speaking, the entire system has a common virtual memory area,
Each device writes data to the address assigned to each device. This scan transmission method is inferior to the message transmission method in terms of the variety and expandability of the data to be sent and received, but it is suitable for high-speed transmission due to the simple procedure and is effective for elevator control systems that require high-speed response such as car position data It is a method.

At the time of installation or maintenance / replacement of the elevator hall equipment that employs such an elevator transmission control device, it is necessary to set the equipment address of the hall equipment as a child machine. In this case, the mode of the elevator transmission control device is set to the setting mode and the device address is set.

As a device address setting method in an elevator transmission control device adopting a message transmission system, for example, one disclosed in Japanese Patent Laid-Open No. 5-12161 is known. This is to monitor the data on the transmission line, store the identification address used by another device, select an unused identification address, and notify the transmission line of the request to use this identification address on the device itself. To do.

As a device address setting method, a method described in Japanese Patent No. 2602916 is known. This is because the base unit monitors the position of the car and sends out the identification address according to the position of the car, and the worker pushes the switch installed on the side of the handset to send the handset to the transmission line from the base unit. This is a method of storing the identified address as its own address.

The system described in Japanese Patent Laid-Open No. 6-247653 is also known. This is because a device that sends information (mainly voice) is installed on the car side, a device that receives that information is installed on the child device side, and when the information from the car side is received on the child device side,
In this method, the identification address sent according to the position of the car at that time is stored as its own address.

[0011]

SUMMARY OF THE INVENTION
The method disclosed in Japanese Patent No. 5-12161 requires a complicated procedure for sending a notification of a request to use an identification address, a notification of refusal due to the use of the identification address in response to a request from another device, and a high-speed response. It is not suitable as a transmission method for elevator control systems that require high performance.

Further, in the method described in Japanese Patent No. 2602916, an operator must get into the car, go to the installation place of the device for which the identification address is to be set, and press the switch. In addition, in the method described in Japanese Patent Laid-Open No. 6-247653, when information is transmitted by sound (voice), there is a possibility of malfunction in a noisy place. There is a possibility that it will detect the sound set in.

It is an object of the present invention to provide an elevator transmission control device that automatically sets an identification address so that a worker does not have to go to the installation location of the equipment and the number of erroneous settings is small.

[0014]

An elevator transmission control apparatus according to the invention of claim 1 is an elevator control apparatus for controlling the operation of an elevator serving a plurality of floors, and a parent for controlling data transmission of the elevator control apparatus. A slave unit having a master unit having a machine control unit, and a slave unit having a platform device installed at each floor landing and data transmission of the platform device, and the slave unit control unit; When the identification address sent by the parent device is received and if it is its own identification address, it is determined whether the data is transmitted or received, and if it is reception, the receiving means for receiving the data and the determination by the receiving means are performed. In the case of transmission, transmitting means for transmitting data to the transmission path, and other device monitoring means for determining whether the identification address received by the receiving means is the identification address of another child device, When the receiving means receives the identification address, it determines whether or not its own identification address has been set, and if the identification address received by the receiving means is not the identification address of another slave unit, When it is determined by the other device monitoring means and it is determined by the own address determination means that its own identification address is not set, the own address storage means for storing the identification address received by the receiving means as its own identification address. It is characterized by having.

In the elevator transmission control device according to the first aspect of the present invention, the identification address sent from the master unit is received by the reception unit of the slave unit control unit, and the own address determination unit sets the own identification address. Or not. Then, when the other device monitoring means determines that the received identification address is not the identification address of another child device, the own address storage means stores the received identification address as its own identification address. Further, the receiving means determines whether the data is transmitted or received when the address is the identification address of itself, receives the data when the data is received, and when the data is transmitted, the data is transmitted to the transmission path by the transmission means. Send.

In the elevator transmission control apparatus according to the invention of claim 2, in the invention of claim 1, when the other device monitoring means detects a plurality of unused identification addresses which are not the identification addresses of other slave units. The self-address storing means stores the unused identification address having the smallest address number among the detected unused identification addresses as the self-identification address.

In the elevator transmission control apparatus according to the invention of claim 2, in addition to the operation of the invention of claim 1, with respect to a plurality of unused identification addresses, the unused identification address having the smallest address number is self-identified. Store as address.

According to a third aspect of the present invention, in the elevator transmission control device according to the first or second aspect of the invention, the other device monitoring means returns data to the identification address sent by the master unit. It is characterized in that it is determined whether or not it is an identification address of another child device by monitoring the presence or absence of the device.

In the elevator transmission control device according to the invention of claim 3, in addition to the operation of the invention of claim 1 or 2, it is judged by the other device monitoring means whether or not it is an identification address of another slave unit. Is performed by monitoring the presence / absence of a slave unit that returns data to the identification address sent by the master unit.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. FIG. 1 is a configuration diagram of an elevator transmission control device according to an embodiment of the present invention. An elevator control device 2 and a parent device control unit 3 are provided as a parent device 1, and a landing gear device 5 and a child device control unit 6 are provided as a child device 4.

The elevator control device 2 controls the operation of the elevator so as to service a plurality of floors, and the hall equipment 5 is installed at each floor hall and performs processing for hall calls. Elevator control device 2
The landing gear 5 and the landing gear 5 are connected to each other via a transmission line 7 so that data necessary for controlling the elevator is transmitted and received.

In the slave unit control unit 6 provided in the slave unit 4, the receiving unit 8 receives the identification address sent from the master unit 1 to the transmission path 7. The identification address received by the receiving means 8 is input to the own address determining means 9 and the other device monitoring means 10.

When the receiving means 8 receives the identification address, the self-address determining means 9 determines whether or not the self-identifying address has been set. If the self-identifying address is not set, This is notified to the other device monitoring means 10, and when the self-identification address has already been set, the reception means 8 is notified of that fact.

When the other device monitoring means 10 receives the notification from the own address judging means 9 that the self identifying address is not set, the identifying address received by the receiving means 8 is the identifying address of the other slave unit 4. Or not. Other cordless handset 4
If it is determined that the address is not the identification address used in step 2, the other device monitoring means 10 notifies the self address storage means 11 of that fact. Upon receiving the notification from the other device monitoring means 10, the own address storage means 11 stores the identification address received by the receiving means 8 as its own identification address.

When receiving the notification from the own address judging means 9 that the own identifying address has already been set, the receiving means 8 judges the contents of the identifying address. That is, it is determined whether the data is transmitted or received, and if the data is received, the data is received from the transmission path 7. On the other hand, in the case of transmission, the data is transmitted from the transmission means 12 to the transmission path 7.

In this way, the slave unit control section 6 constantly monitors the identification address output from the master unit 1 to the transmission path 7, and if its own identification address has already been set, the identification address If it is not its own identification address, data is transmitted and received based on its content, and if it is not its own identification address, the process is terminated.

On the other hand, if the own identification address is not set, it is judged whether or not the received identification address is the identification address used by the other handset 4, and the other handset is using it. If there is no unused identification address, the unused identification address is stored as its own identification address.

FIG. 2 is a flow chart showing the operation of handset controller 6 in the embodiment of the present invention. First, the receiving means 8 of the child device 6 determines whether or not the identification address transmitted from the parent device 1 has been received (S1). If the identification address has not been received, the transmission process ends. When it is determined in step S1 that the identification address has been received, the own address determination means 9 determines whether or not its own identification address has been set (S2).

When it is determined in step S2 that its own identification address has been set, the receiving means 8
Determines whether the received identification address matches its own identification address (S3). If it is determined that they do not match, the transmission process ends.

On the other hand, when it is determined in step S3 that the received identification address matches the identification address of itself, the receiving means 8 transmits the data by the device (child device 4) of the received identification address. Address to do
It is determined whether it is a (talker address) or an address (listener address) at which data should be received from another device (S4). If it is a talker address, data transmission processing is performed (S5), and if it is a listener address, data reception processing is performed (S6).

If the identification address of the device itself has not been set in step S2, the other device monitoring means 1
0 monitors whether or not there is another device (other handset 4) that returns data to the identification address received in step S1 based on the presence or absence of data reception (S7). If there is the child device 4 that has received the data, it is determined that the identification address received in step S1 is used by another device (other child device 4), and the process proceeds to step S1 to determine the next identification address. wait.

If the other handset 4 has not received the data in step S7, it is determined whether or not a predetermined time limit has elapsed (S8). This time limit is the maximum time from the transmission of the identification address by the base unit 1 to the transmission of data by the handset unit 4 or the base unit 1. If this time is exceeded, it is treated as a timeout error. When a time-out error is detected in step S8, the own address storage means 11 determines in step S1.
The identification address received at is stored as its own address (S9).

As described above, since the setting of the identification address of the slave unit 4 whose identification address is not set can be automated, the work efficiency is improved.

Next, FIG. 3 is a flow chart showing another example of the operation of the handset controller 6 in the embodiment of the present invention. In the example shown in FIG. 3, steps S9 to S10 of the flowchart shown in FIG.
12, and the other device 4 is monitored by the other device monitoring means 10.
When a plurality of unused identification addresses other than the above identification addresses are detected, the own address storage means 11 stores the unused identification address having the smallest address number among the detected unused identification addresses as the own identification address. It was done like this.

In FIG. 3, in the receiving means 8 of the slave unit 6,
It is determined whether or not the identification address is received from the parent device 1 (S1). When the identification address is not received, the transmission process is ended, and when the identification address is received, the own address determination means 9 determines whether or not the own identification address has been set (S2). .

If it is determined in step S2 that its own identification address has been set, the receiving means 8
Determines whether the received identification address matches its own identification address (S3). If it is determined that they do not match, the transmission process ends.

On the other hand, when it is determined in step S3 that the received identification address matches with its own identification address, the receiving means 8 causes the device (slave unit 4) of the received identification address to transmit data. Address to do
It is determined whether it is a (talker address) or an address (listener address) at which data should be received from another device (S4). If it is a talker address, data transmission processing is performed (S5), and if it is a listener address, data reception processing is performed (S6).

If it is determined in step S2 that its own identification address has not been set, the other device monitoring means 10 determines whether or not there is another slave device 4 that returns data to the identification address received in step S1. To
Monitoring is performed according to the presence or absence of data reception (S7). Other cordless handset 4
When the data according to step S1 is received, it is determined that the identification address received in step S1 is used by the other handset 4, and the process proceeds to step S1 to wait for the next identification address.

If the other handset 4 has not received the data in step S7, it is determined whether a predetermined time limit has passed, that is, whether a time-out error has been detected (S8). When a time-out error is detected in step (S8), the own address storage means 11
Temporarily stores the identification address received in step S1 (S10).

In the receiving means 8, whether or not one scan transmission cycle has ended, either by the master unit 1 transmitting all the identification addresses or by transmitting the identification address transmission end code. Judge whether or not (S1
1). If one scan transmission cycle has not ended, the process proceeds to step S1 and waits for the reception of the next identification address.

When the end of one scan transmission cycle is detected in step S11, the own address storing means 11
Stores the identification address having the smallest number among the identification addresses stored in step S10 as its own identification address (S12).

As described above, when a plurality of unused identification addresses are detected within one scan transmission cycle, the unused identification address with the smallest address number is stored as the self-identification address. As a result, the setting of the identification addresses of the plurality of slave units 4 can be automated, so that the work efficiency is improved.

In the above description, the unused identification address is detected in one scan transmission cycle, but the identification address continuously detected over the predetermined number of scan transmission cycles or more is detected by the other handset 4. It is also possible to recognize it as an unused identification address. In this case, even if the state of the transmission line 7 is temporarily deteriorated due to a disturbance such as noise, the possibility of duplication of identification addresses is reduced.

Further, when the identification addresses of a plurality of slave units 4 are set, if the slave units 4 for which a younger identification address is desired to be activated are activated in sequence, there is less risk of duplication of the identification addresses. In this case, the starting method may be power-on work by a worker or connection work of a transmission line.

[0045]

As described above, according to the present invention, it is possible to efficiently set parameters of a transmission device, for example, a slave unit. That is, the slave unit for which the identification address has not been set is
When the unused identification address is detected, the unused identification address is stored as the self-identification address, whereby the setting of the identification address of the slave unit can be automated.

Further, the detection of an unused identification address does not require a memory area for storing the identification address used by another slave, nor does it require a use request notification or use refusal notification of the identification address. Therefore, the execution speed of the transmission itself is not impaired.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an elevator transmission control device according to an embodiment of the present invention.

FIG. 2 is a flowchart showing an example of an operation of a handset controller according to the embodiment of the present invention.

FIG. 3 is a flowchart showing another example of the operation of the slave unit control section in the embodiment of the present invention.

[Explanation of symbols]

1 base unit 2 Elevator control device 3 Base unit controller 4 cordless handsets 5 Landing equipment 6 Remote unit control section 7 transmission lines 8 Receiving means 9 Own address determination means 10 Other device monitoring means 11 Own address storage means 12 Transmission means

Claims (3)

(57) [Claims] 1. A master unit having an elevator controller for controlling the operation of an elevator serving a plurality of floors and a master unit for controlling data transmission of the elevator controller, and a hall installed at each floor hall. A device and a child device having a child device control unit for controlling data transmission of the landing device, wherein the child device control unit receives the identification address sent by the parent device and is the identification address of itself. Includes a receiving unit that determines whether the data is transmitted or received and, if the determination is reception, receives the data, and a transmission unit that transmits the data to the transmission path when the determination by the reception unit is transmission, Other device monitoring means for determining whether or not the identification address received by the receiving means is the identification address of another child device, and sets its own identification address when the receiving means receives the identification address And a self-address determining means for determining whether or not the self-address determination means determines that the identification address received by the receiving means is not an identification address of another child device, and the self-address determining means determines the self-address by the other device monitoring means. An elevator transmission control device comprising: an own address storage unit that stores the identification address received by the receiving unit as its own identification address when it is determined that the identification address is not set. 2. When the other device monitoring unit detects a plurality of unused identification addresses that are not the identification addresses of other slave units, the own address storage unit selects one of the detected unused identification addresses. The elevator transmission control device according to claim 1, wherein an unused identification address having the smallest address number is stored as a self-identification address. 3. The other device monitoring means monitors whether or not there is a child device that returns data to the identification address sent by the parent device, thereby determining whether or not it is the identification address of another child device. The determination is performed according to claim 1.
Alternatively, the elevator transmission control device according to claim 2.