FIELD: electronics.
SUBSTANCE: field device comprises a transducer, a photodetector, a display, and a display controller. Transducer controls or monitors process variable, and display shows information relating to process variable. Photodetector detects a light level. Display controller is provided with edge-triggered interrupt to switch display on and off in response to both increase and decrease of light level detected by photodetector.
EFFECT: technical result is higher efficiency of energy storage.
23 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| RESOURCE OPTIMIZATION IN FIELD DEVICE | 2014 |
|
RU2680929C2 |
| METHODS AND HARDWARE FOR DISPLAYING INFORMATION BY MEANS OF PROCESS CONTROLLING DEVICE | 2013 |
|
RU2643077C2 |
| SYSTEM AND METHOD FOR LOW-POWER LOGIC FOR NUMBER BUS IN MEMORY | 2007 |
|
RU2424586C2 |
| RADIO CONTROLLER FOR WIRELESS CONTROL OF LAMPS AND ELECTRICAL EQUIPMENT | 2020 |
|
RU2730928C1 |
| PORTABLE MEDICAL SUPPORT SYSTEM WITH AUXILIARY VIEWING MODE AND METHOD OF OPERATION THEREOF | 2016 |
|
RU2714369C2 |
| POWER SUPPLY AND WIRELESS COMMUNICATION UNIT FOR PROCESS FIELD DEVICES | 2009 |
|
RU2534016C2 |
| METHOD TO SELECT DATA TRANSFER SERVICE PROVIDER IN FIELD DEVICE | 2006 |
|
RU2405210C2 |
| SYSTEMS AND METHODS OF DECREASING TRANSIT SITES RELATED TO THE NUCLEAR SYSTEM | 2014 |
|
RU2628665C2 |
| PORTABLE TOOL FOR IN-SITU SERVICING WITH PERFECTED FUNCTIONS | 2010 |
|
RU2522312C2 |
| ELECTRONIC OPHTHALMIC LENS WITH GAZE DETECTOR | 2013 |
|
RU2571179C2 |
