GB1398874A - Automatic fault location arrangement for electric or elec- ronic control systems - Google Patents
Automatic fault location arrangement for electric or elec- ronic control systemsInfo
- Publication number
- GB1398874A GB1398874A GB3449472A GB3449472A GB1398874A GB 1398874 A GB1398874 A GB 1398874A GB 3449472 A GB3449472 A GB 3449472A GB 3449472 A GB3449472 A GB 3449472A GB 1398874 A GB1398874 A GB 1398874A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stable
- scanning
- stables
- gate
- points
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000012544 monitoring process Methods 0.000 abstract 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000000881 depressing effect Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/317—Testing of digital circuits
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Keying Circuit Devices (AREA)
Abstract
1398874 Monitoring voltage levels at a plurality of points KOMBINAT UMFORMTECHNIK ERFURT VEB 24 July 1972 34494/72 Heading G1U [Also in Division H2] The voltages existing at a plurality of points 1,2,..., n, Fig. 2, are monitored to determine whether any rises above a pre-set threshold level, such rises being associated with faults, by associating a bi-stable threshold device with each point via appropriate coupling circuits 8,9, by detecting, by means of a gate 7, when any one, or more, bi-stable devices becomes set in its 'one' state - which corresponds to the existence of a fault - and then, by means of a scanning circuit 12,14,15, sequentially connecting the bi-stable circuits, oneby-one, over contacts 13, to a further detector 16 so that the particular bi-stables which are set in their 'one' states can be identified. In operation the system is initially reset by depressing a key 10 which puts a bi-stable 11 into a state in which it resets all the threshold bi-stables 4 to 'zero'. If the points 1,2,..., n, are associated, as in the embodiment described, with a machine tool, then once the machine is switched on a contact 20 is closed. Monitoring of the points 1,2, ...,n, now proceeds and providing no fault occurs all the threshold bi-stables 4 remain in their 'zero' reset states and a lamp 6 is energized via a gate 5. When a fault occurs, it is detected by both gate 5, which deenergizes lamp 6, and gate 7 which reverses the state of bi-stable 11 thereby causing the scanning control unit 17 to connect the bi-stables 4 sequentially to the detector 16. When a bi-stable 4 registering a fault condition is found, the detector 16 causes further scanning to be inhibited until a "continue scan" device 18 is manually actuated. While scanning is inhibited the number of the point at which it stopped is indicated on a device 3 so that the fault can either be repaired or its location noted, before scanning is restarted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3449472A GB1398874A (en) | 1972-07-24 | 1972-07-24 | Automatic fault location arrangement for electric or elec- ronic control systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3449472A GB1398874A (en) | 1972-07-24 | 1972-07-24 | Automatic fault location arrangement for electric or elec- ronic control systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1398874A true GB1398874A (en) | 1975-06-25 |
Family
ID=10366352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3449472A Expired GB1398874A (en) | 1972-07-24 | 1972-07-24 | Automatic fault location arrangement for electric or elec- ronic control systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1398874A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2283624A (en) * | 1993-10-04 | 1995-05-10 | Baldev Patel | Industrial equipment operating status scanner |
| CN113198765A (en) * | 2021-05-03 | 2021-08-03 | 深圳怪虫机器人有限公司 | Photovoltaic cleaning robot capable of automatically returning and continuing to sail |
| CN113700920A (en) * | 2021-07-27 | 2021-11-26 | 华能巢湖发电有限责任公司 | Two-position self-holding electric/pneumatic valve driving stage based on FOXBORO system |
-
1972
- 1972-07-24 GB GB3449472A patent/GB1398874A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2283624A (en) * | 1993-10-04 | 1995-05-10 | Baldev Patel | Industrial equipment operating status scanner |
| GB2283624B (en) * | 1993-10-04 | 1997-09-10 | Baldev Patel | Industrial equipment operating status scanner |
| CN113198765A (en) * | 2021-05-03 | 2021-08-03 | 深圳怪虫机器人有限公司 | Photovoltaic cleaning robot capable of automatically returning and continuing to sail |
| CN113198765B (en) * | 2021-05-03 | 2024-06-07 | 深圳怪虫机器人有限公司 | Photovoltaic cleaning robot capable of automatically returning and continuing |
| CN113700920A (en) * | 2021-07-27 | 2021-11-26 | 华能巢湖发电有限责任公司 | Two-position self-holding electric/pneumatic valve driving stage based on FOXBORO system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |