A kind of electrical property of solar-powered power supply automatic monitoring system
The utility model relates to automation field, and particularly a kind of electrical property to sun-generated electric power carries out automatic monitoring system.
In the solar product, one of sun-generated electric power very the important techniques feature be electric current and voltage swing when when work, accumulator being charged, therefore, in the time of when the solar-electricity product-derived is tested, need working the electric current and the voltage of charge in batteries are tested the solar-electricity product-derived.Present common practices is: in the good sun-generated electric power of outdoor mounted, the electrical interface of sun-generated electric power is received the charging input end of accumulator, survey number with very original method with reometer, voltage table by manpower.When measuring electric current, also need reometer is concatenated between the output terminal and accumulator of photovoltaic system, doing like this to stop continues after reometer connected again, do like this is that inaccurate efficient is low again, and the mode of operation of the control integrated circuit of some sun-generated electric power is can not stop in work, mode of operation such as some circuit is controlled by IC, but the electric current when testing its work if desired must disconnect product circuit, the IC work that can start anew again like this.Preceding 4 hours working currents of Working mode set LED such as the IC of a product are 80ma, and back 4 hours is 40ma, if lamp quits work, the IC work that will start anew detects the effect less than reality; Secondly now so can waste a lot of times with manual detection, the instrument of measuring current and voltage parameter is a multimeter, and its inside has resistance, use be battery, the voltage resistance that can descend can increase, and causes the out of true as a result of test.In a word, in the prior art electrical property of solar-powered power supply monitored and has following shortcoming:
1, detection efficiency is low, error is big.
2, can not detect in real time.
Summary of the invention
The deficiency of inaccurate and inefficiency when the working current of sun-generated electric power and voltage being detected for solving in the prior art, the utility model provides the electrical property of solar-powered power supply automatic monitoring system, comprises cell tester, light source and displayed record equipment;
Described cell tester has at least one pair of and receives the voltage measurement probe at tested sun-generated electric power output voltage two ends, pair of series and give current measurement probe and data delivery outlet in the circuit of institute's charge in batteries to described sun-generated electric power, and described data output links to each other with displayed record equipment by lead; The communication agreement is an EIA RS-232 agreement;
The input end of described displayed record equipment links to each other with the measurement result output terminal of described cell tester, comprises display, storer, processor and corresponding software.
The beneficial effects of the utility model are, contact because the current measurement probe of cell tester and voltage measurement popped one's head in can keep with tested solar battery sheet accumulator being charged, make the measuring accuracy height, utilize the cell tester data output that measurement data is sent to center processor simultaneously, the processing of depositing in center processor has realized the auto-real-time monitoring to electrical property of solar-powered power supply.
Below in conjunction with the drawings and specific embodiments the utility model is carried out more detailed description.
Description of drawings
Accompanying drawing 1 is the utility model embodiment block diagram.
Among the figure: 1, cell tester, 11, current measurement probe, 12, the voltage measurement probe, 13, digital output, 2, sun-generated electric power, 3, accumulator, 4, sun-generated electric power and charge in batteries interface, 5, displayed record equipment, 6, optoisolator, 7, lead.
Embodiment 1, and referring to accompanying drawing 1, the electrical property of solar-powered power supply automatic monitoring system comprises cell tester 1, light source and displayed record equipment 5; Described cell tester 1 has at least one pair of voltage measurement probe 12 and a pair of current measurement probe 11, and in the present embodiment, cell tester 1 has a pair of current measurement probe 11 and a pair of voltage measurement probe 12.All probes all are linked in sun-generated electric power and the charge in batteries interface 4, described voltage measurement probe 12 and the two ends of receiving sun-generated electric power 2 and solar storage battery 3, described current measurement probe 11 is connected in series to the sun-generated electric power 2 described in sun-generated electric power and the charge in batteries interface 4 and gives in the circuit of institute's accumulator 3 chargings.
In the present embodiment, light source general using sunshine, this is a kind of light source of environmental protection and energy saving, also is can reflect the light source of sun-generated electric power performance with redressing.As long as with sun-drenched roof of tested sun-generated electric power or open area, allow the sunshine direct projection on tested sun-generated electric power, get final product.Utilize sunshine as the light source of this automatic monitoring system in sun-drenched desert or the beach be very practical.Also can be used as the light source of present embodiment with artificial light sources, artificial light sources no matter also a sky sunny day Yintu(K19) can use, can be good at arranging testing progress because controlled and no matter still be can use evening daytime.
Displayed record equipment 5 uses a personal computer in the present embodiment, has a test result digital output 13 on the cell tester 1, and digital output 13 links to each other by lead 7 with the data input pin of computing machine.When in use, because the testing location environment is poor, do not meet the condition of work of equipment such as computing machine, therefore, the general present embodiment that uses is to arrange like this: cell tester and tested sun-generated electric power are laid in the sun, it is local preferably that computing machine is installed in indoor conditions, utilize the RS-232 mouth on the cell tester that test data wherein is sent in the computing machine, the transmission range of RS-232 interface is 15 meters now, for the data on the cell tester 1 can be sent to safely in the computing machine, optoisolator 6 is set on lead 7.On computers display interface can be set, and on request with the deposit of test data record.
Embodiment 2, the key distinction of present embodiment and embodiment 1 is, battery meter 1 has 8 pairs of current measurement probes 11 and 8 pairs of voltage measurement probes 12 in the present embodiment, can monitor simultaneously the situation of 8 groups of sun-generated electric power chargings, the digital output 13 that utilizes cell tester 1 with the data delivery that measures in PC, in PC, store and analyze, realize simultaneously automatic monitoring 4 groups of sun-generated electric powers.
In addition, can also carry out real-time automatic monitoring to more sun-generated electric power, measured data is input in the PC by digital output by many cell testers.
Proving installation technical descriptioon the utility model embodiment of comprehensive embodiment 1 and embodiment 2:
(1), comprehensive utilization ratio height: only need the data line of instrument done to extend just the associated solar product to be extended to outdoorly (need be placed on outdoor discharging and recharging such as the solar product that has, obtain the open air and discharge and recharge data, just data line can be extended about 15 meters, port lines is extended 3 meters, and it is inner so that observe at any time that monitoring computer can be placed on the laboratory).
(2), function is widely used: 8 ports (can connect many on the computer) are arranged on every testing apparatus, working current, operating voltage in the time of can monitoring charge and discharge simultaneously, this system can be used for all needs and monitors on the product and research and development of electrical property (electric current and the voltage of charging, discharge) automatically.
(3) parameter setting and data are preserved: the electric current setting in monitoring instrument loop need be greater than the electric current of institute's observation circuit; By software setting the data that monitored are preserved automatically again, for follow-up consulting;
(4) data accuracy height: but the minimum value of this system's test voltage is 0.0001V.
The result that the system testing of the utility model embodiment is come out promptly is widely used simply again, having reduced human cost simultaneously (does not need to test manually, normally circulation that discharges and recharges of test in 48 hours), after only need instrument parameter being provided with OK now with this system, need not manually keep an eye on fully, computer can be preserved test data automatically; Secondly on measurement data, can obtain very accurate data, allow the data of scientific research or check unit can demonstrate fully the most realistic performance of product.