Production process control system
First Claim
1. A terminal device connectable to a central device for control of a production process in which a plurality of workers perform work on individual workpieces, comprising:
- input means for inputting of a signal representing the amount of work done on said workpieces by at least one of said workers;
means for computing a work output based on the input signal;
means for transmitting the computed work output to the central device; and
means for providing an output count cancel signal, wherein the output computing means adds to the current output a value representing the amount of work done according to every input signal received and subtracts a value corresponding to every output count cancel signal received from the current output.
0 Assignments
0 Petitions
Accused Products
Abstract
A production process control system includes a plurality of terminal devices and a central device connected to the terminal device. Each of the terminal devices has at least an element for counting the amount of work done and generating a corresponding output, an element for entering a worker identifying code, an element for transmitting the counted output and the entered worker identifying code to the central device and an element for providing an output cancel signal by which, in conjunction with the counted output, a current output value is updated. The central device at least has an element for performing communications with each terminal device and an element for storing the output and the worker identifying code transmitted from the terminal device as associated with each other. In one aspect of the invention, there is provided in a terminal device a bar code reader for reading a bar code recorded on a medium, a bar code reader withdrawal detecting switch, and an alarm that acts when no input is received from the bar code medium over a predetermined lapse of time after detection of a bar code reader withdrawal.
-
Citations
14 Claims
-
1. A terminal device connectable to a central device for control of a production process in which a plurality of workers perform work on individual workpieces, comprising:
-
input means for inputting of a signal representing the amount of work done on said workpieces by at least one of said workers; means for computing a work output based on the input signal; means for transmitting the computed work output to the central device; and means for providing an output count cancel signal, wherein the output computing means adds to the current output a value representing the amount of work done according to every input signal received and subtracts a value corresponding to every output count cancel signal received from the current output. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A terminal device, connectable to a central device for control of a production process in which a plurality of workers perform work on individual workpieces, comprising:
-
input means for inputting of a signal representing the amount of work done on said workpieces by at least one of said workers, comprising a bar code reader for reading a bar code from a medium on which a bar code is recorded, a bar code reader withdrawal detecting switch mounted on a holder for the bar code reader, means for measuring a predetermined period of time elapsed after detection of a bar code reader withdrawal and means for giving an alarm when no bar code data input is fed from the bar code reader despite lapse of the predetermined period of time after the detection of bar code reader withdrawal; means for computing a work output based on the input signal; means for transmitting the computed work output to the central device; and means for providing an output count cancel signal, wherein the output computing means adds to the current output a value representing the amount of work done according to every input signal received and subtracts a value corresponding to every output count cancel signal received from the current output. - View Dependent Claims (11, 12, 13)
-
-
14. A terminal device for production process control comprising input means for a signal relating to a work output, means for performing communication with a central device, a bar code reader and a withdrawal detecting switch mounted on a holder for the bar code reader, the terminal device being operative to usually perform at least an output counting process based on the input signal relating to the work output, and a communication process for transmitting at least the counted output data to the central device, the device being operative to perform a process for reading bar code data given by the bar code reader when receiving a withdrawal detecting input from the switch.
Specification