GB2339895A - A portable compartment for an automated guided vehicle (AGV) - Google Patents
A portable compartment for an automated guided vehicle (AGV) Download PDFInfo
- Publication number
- GB2339895A GB2339895A GB9815353A GB9815353A GB2339895A GB 2339895 A GB2339895 A GB 2339895A GB 9815353 A GB9815353 A GB 9815353A GB 9815353 A GB9815353 A GB 9815353A GB 2339895 A GB2339895 A GB 2339895A
- Authority
- GB
- United Kingdom
- Prior art keywords
- compartment
- temperature
- agv
- automated guided
- portable
- 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.)
- Withdrawn
Links
- 238000010438 heat treatment Methods 0.000 claims description 7
- 230000005679 Peltier effect Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1919—Control of temperature characterised by the use of electric means characterised by the type of controller
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/24—Guiding or controlling apparatus, e.g. for attitude control
- B64G1/244—Spacecraft control systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/003—Transport containers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
- F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Control Of Temperature (AREA)
Description
1 2339895 A PORTABLE TEMPERATURE-CONTROLLED COMPARTMENT FOR AUTOMATED
GUIDED VEHICLES This invention relates to a portable temperaturecontrolled compartment for use with Automated Guided vehicles.
Automated Guided Vehicle (AGV) systems have been widely applied in many areas of industry, especially in assembly and manufacturing operations. For ultraprecision manufacturing systems, stable temperature conditions are desirable. Current AGV systems, however, do not include facilities which provide precise temperature-controlled compartments. it has been observed that long waiting times are required for,soaking, at a specific controlled temperature (eg.20C) of components which have been subjected to changing temperature conditions over the period of transportation. This situation can become a bottleneck 2 when implementing modern manufacturing systems such as 'just-in-time (JIT), and flexible computer- integrated manufacturing (CIM) systems.
Accordingly, the present invention provides a portable temperaturecontrolled compartment for AGV systems. This new device incorporates the following features:- (1)A heating module using heater-mats with a two-stage control (one booster and one fine-tuning heating module) The heater-mats are operated on a d.c. power-supply. A temperature- sensing switch has also been provided for protecting this apparatus from damage due to overheating.
(2)The cooling module, that is comprised of a pair of Peltier-effect Heatpumps, is used for controlling the temperature of the transportation compartment. Each Peltier-effect Heat-pump module consists of: a semiconductor-thermoelectric device, an aluminium %finned, heat-sink and an electric fan which can extract accumulated heat from the compartment of the AGV systems.
3 (3)A closed-loop temperature control module is designed to be operated on a d.c. power-supply. The temperature controller used is an ultra-compact PID digital temperature controller that provides for proportional, Integral and Differential control strategies. Solid State Relays (SSR's) have also been used in this control module as a power control interface.
A specific embodiment of the invention will now be described with reference to the accompanying drawings. The unit consists of an insulated compartment 10 and control module 50 as can be seen in Figure 1. Referring to the schematic diagram (Figure 2) the temperaturecontrolled compartment comprises a thermally- insulated container 10, a d.c. rechargeable power-supply unit 20, a pair of Peltier-effect heat-pumps 31&32, and a closed-loop control module 50. In the container 10, two sets of heating-modules are provided:- one (i.e. the fine-tuning heating module 41) is fitted to the underside of the cover, the other (i.e. the Booster Heating-module 42) is laid on the container floor.
4 A temperature sensor 52 (for instance, a PT100 platinum resistance) is fitted near to the fine-tuned heating module 41. This measures the temperature inside the transportation compartment. This temperature sensor is connected to a digital temperature controller 53, which provides many advanced control options. In addition to the PID (proportional, Integral and Differential) control, a special function of 'zero and span adjustment' allows the calibration of the temperature measurement to be easily carried out.
Once the components to be transported by an Automated Guided Vehicle (AGV) are loaded into the compartment, the control module continuously monitors the temperature inside the compartment and also the ambient temperature. By using the pre-set conditions (such as the desired temperature, cycle time and approach rate), and by comparing the temperature inside the compartment to the ambient temperature, the digital temperature controller 53 produces switching signals to control both the heat-pump cooling module (31&32) and the heating-module (41&42) through the power control interface 54. Solid State Relays (SSR's) are used in the power control module to ensure higher reliability.
The thermally- insulated container 10, which holds all the modules (such as heating, cooling and control modules), provides a working volume for the components which are to be transported by the AGV systems. In order to provide this temperature-controlled compartment with higher 'portability', all of the modules (ie. heating, cooling and control module) have been designed to be operated from a d.c. (e.g. 12 volts) power-supply. A compact (about 5 Kgs) d.c. rechargeable power-supply unit 20 is fitted for this purpose. Once this portable temperature-controlled compartment has been moved into an AGV system, the power required can be provided by the AGV system itself through a adaptor in the control-module 50.
6
Claims (4)
1. A portable temperature-controlled compartment, comprising a thermally insulated container, a power source, the means of heat-exchange and a temperture controller.
2. A portable temperature-controlled compartment as claimed in Claim I wherein heat-exchangers comprise heating modules and Peltier-effect heat pumps.
3. A portable temperature-controlled compartment as claimed in Claim I wherein a power source is provided on the compartment with a d.c. rechargeable power supply unit.
4. A portable temperature-controlled compartment as claimed in Claim I wherein the controller is provided on the compartment with a compact PID (Proportional Integral and Differential) temperature controller, which is designed to be operated using a d.c. power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9815353A GB2339895A (en) | 1998-07-22 | 1998-07-22 | A portable compartment for an automated guided vehicle (AGV) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9815353A GB2339895A (en) | 1998-07-22 | 1998-07-22 | A portable compartment for an automated guided vehicle (AGV) |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9815353D0 GB9815353D0 (en) | 1998-09-16 |
| GB2339895A true GB2339895A (en) | 2000-02-09 |
Family
ID=10835561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9815353A Withdrawn GB2339895A (en) | 1998-07-22 | 1998-07-22 | A portable compartment for an automated guided vehicle (AGV) |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2339895A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005047780A1 (en) * | 2003-11-11 | 2005-05-26 | Olivier Stotz | Transport container for perishables, comprising an integrated active source of cold or heat |
| WO2014023114A1 (en) * | 2012-08-10 | 2014-02-13 | 深圳市麦迪聪医疗电子有限公司 | Thermostat and temperature control method thereof |
| CN104816882A (en) * | 2015-04-16 | 2015-08-05 | 华南农业大学 | Variable frequency control system of water-cooled semiconductor refrigeration fruit/vegetable freshness preservation tank |
| CN105068543A (en) * | 2015-08-11 | 2015-11-18 | 浙江工业大学 | Piggyback-type AGV two wheel synchronization method based on PID control |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105550676A (en) * | 2016-02-03 | 2016-05-04 | 天津市乐图软件科技有限公司 | Logistics delivery vehicle trace tracking method based on linearity CCD |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4726193A (en) * | 1987-02-13 | 1988-02-23 | Burke Edward J | Temperature controlled picnic box |
| GB2259808A (en) * | 1991-09-03 | 1993-03-24 | Heidi Rampf | Thermoelectric cooling boxes |
| US5301508A (en) * | 1992-08-14 | 1994-04-12 | Rubbermaid Incorporated | Thermoelectric portable container |
| US5524440A (en) * | 1989-02-06 | 1996-06-11 | Nishioka; Hajime | Compact refrigerator for cosmetics |
| US5603220A (en) * | 1995-09-11 | 1997-02-18 | Cool Med L.L.C. | Electronically controlled container for storing temperature sensitive material |
| GB2331838A (en) * | 1997-11-24 | 1999-06-02 | Coolbox | Portable,thermoelectric,temperature controlled receptacles. |
-
1998
- 1998-07-22 GB GB9815353A patent/GB2339895A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4726193A (en) * | 1987-02-13 | 1988-02-23 | Burke Edward J | Temperature controlled picnic box |
| US4726193B1 (en) * | 1987-02-13 | 1996-07-02 | Marlow Ind Inc | Temperature controlled picnic box |
| US4726193C2 (en) * | 1987-02-13 | 2001-03-27 | Marlow Ind Inc | Temperature controlled picnic box |
| US5524440A (en) * | 1989-02-06 | 1996-06-11 | Nishioka; Hajime | Compact refrigerator for cosmetics |
| GB2259808A (en) * | 1991-09-03 | 1993-03-24 | Heidi Rampf | Thermoelectric cooling boxes |
| US5301508A (en) * | 1992-08-14 | 1994-04-12 | Rubbermaid Incorporated | Thermoelectric portable container |
| US5603220A (en) * | 1995-09-11 | 1997-02-18 | Cool Med L.L.C. | Electronically controlled container for storing temperature sensitive material |
| GB2331838A (en) * | 1997-11-24 | 1999-06-02 | Coolbox | Portable,thermoelectric,temperature controlled receptacles. |
Non-Patent Citations (1)
| Title |
|---|
| Online (JAPIO) abstract for JP130007652 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005047780A1 (en) * | 2003-11-11 | 2005-05-26 | Olivier Stotz | Transport container for perishables, comprising an integrated active source of cold or heat |
| WO2014023114A1 (en) * | 2012-08-10 | 2014-02-13 | 深圳市麦迪聪医疗电子有限公司 | Thermostat and temperature control method thereof |
| CN104816882A (en) * | 2015-04-16 | 2015-08-05 | 华南农业大学 | Variable frequency control system of water-cooled semiconductor refrigeration fruit/vegetable freshness preservation tank |
| CN104816882B (en) * | 2015-04-16 | 2017-06-06 | 华南农业大学 | A kind of water-cooled semiconductor refrigerating fruit/vegetable fresh-keeping box frequency-changing control system |
| CN105068543A (en) * | 2015-08-11 | 2015-11-18 | 浙江工业大学 | Piggyback-type AGV two wheel synchronization method based on PID control |
| CN105068543B (en) * | 2015-08-11 | 2017-07-28 | 浙江工业大学 | It is a kind of that type AGV two-wheeled synchronous method is born based on PID control |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9815353D0 (en) | 1998-09-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |