CN209486271U - Intelligent electric energy meter clock battery performance test device - Google Patents

Abstract

The utility model is a kind of Intelligent electric energy meter clock battery performance test device, including MCU main control module, graphical LCD MODULE, the alarm module, voltage and current sampling module group, Clock battery detection module group being electrically connected with MCU main control module, and to the power module that modules are powered；Voltage and current sampling module group is made of N number of voltage and current sample circuit, Clock battery detection module group is made of N number of Clock battery detection circuit, N number of Clock battery can be detected simultaneously, it can be achieved fast and efficiently to detect Clock battery, it saves labour turnover, meanwhile by graphical LCD MODULE, the performance of Clock battery can qualitative, be quantitatively determined.

Description

Intelligent electric energy meter clock battery performance test device

Technical field

The present invention relates to instrument fields, fill in particular to a kind of Intelligent electric energy meter clock battery performance test It sets.

Background technique

Clock battery is one of important component of intelligent electric energy meter, and Intelligent electric energy meter clock battery production quotient is dispatched from the factory in battery Shi Douhui does corresponding performance test, to ensure the excellent of Clock battery performance, but Clock battery transport to client, dealer, The links such as storage storage, inventory environment can all impact the overall performance of battery, especially exist to individual performances The Clock battery of defect influences even more serious.

In engineering practice, during the intelligent electric meter for owing electricity for Clock battery replaces Clock battery, this is frequently encountered Sample makes us the case where being at a loss, when on the new battery altering to intelligent electric meter that warehouse is got, and then key wakeup be can With, key wakeup again after spending a few minutes can not but pass through key wakeup at this time.For business personnel, often ignore Such problems directly sees the electric energy meter for having replaced battery off, causes problem that could not only solve, but also buries new ask Inscribe hidden danger.

This battery newly changed is being encountered, originally key wakeup can be with a few minutes excessively can not but pass through the feelings of key wakeup When condition, we are substantially the same common practice, and battery is removed, and are tested this battery both end voltage, are found after test, this kind of electricity Cell voltage is but very normal, such as: hundred million big EVE14250 problem batteries are directed to, voltage is measured in 3.65V, and this result can make engineering Teachers judge by accident, and some is considered caused by Clock battery passivation, some then suspect ammeter there may be failure or potential ask Topic causes to repeat to compare, changes table comparison, cause additional testing cost, consume engineer's a large amount of testing time, cause people Power, material resources waste, reduce enterprise's whole efficiency.

Summary of the invention

In order to solve shortcoming and defect existing in the prior art, when the utility model provides a kind of real intelligent electric energy meter Clock battery performance test device.

To achieve the goals above, the utility model provides a kind of Intelligent electric energy meter clock battery performance test device, Comprising: MCU main control module, graphical LCD MODULE, alarm module, the voltage and current being electrically connected with MCU main control module Sampling module group, Clock battery detection module group, and to the power module that modules are powered；The power module is equipped with It can control the switch key of entire test device power-on and power-off, the voltage and current sampling module group is sampled by N number of voltage and current Circuit composition, the Clock battery detection module group are made of N number of Clock battery detection circuit, the voltage and current sampling Circuit and the Clock battery detection circuit correspond.

Preferably, the voltage and current sample circuit includes: sampling A/D chip U2, capacitor C10, capacitor C11, capacitor C12, capacitor C13, capacitor C15, capacitor C16, capacitor C17, capacitor C18, capacitor C19, capacitor C20, capacitor C21, resistance R10, Resistance R11, resistance R12, resistance R15, resistance R16, resistance R17, crystal oscillator OSC1, the 1st pin and capacitor of sampling A/D chip U2 The other end of C10, capacitor C11, resistance R10 connection, capacitor C10 and capacitor C11 are grounded, the other end and power supply mould of resistance R10 Block electrical connection, the 10th pin of sampling A/D chip U2 are connect with capacitor C16, capacitor C17, another termination of capacitor C16 and capacitor C17 Ground, the 11st pin ground connection of sampling A/D chip U2, the 12nd pin of sampling A/D chip U2 are connect with resistance R17, the other end of resistance R17 It is electrically connected with power module, the 13rd pin of sampling A/D chip U2 is connect with resistance R15, other end resistance R16, the electricity of resistance R15 Hold the electrical connection of C21, MCU main control module, the other end ground connection of resistance R16 and capacitor C21, the 14th pin of sampling A/D chip U2, the 15 pins and the electrical connection of MCU main control module, the 16th pin of sampling A/D chip U2 are electrically connected with capacitor C20, MCU main control module, electricity Hold the other end ground connection of C20, the 17th pin ground connection of sampling A/D chip U2, the 18th pin and capacitor C18, capacitor of sampling A/D chip U2 The other end ground connection of C19, power module connection, capacitor C18 and capacitor C19, the 19th pin and capacitor C15 of sampling A/D chip U2 connect It connects, the connection of the pin 1 of crystal oscillator OSC1, the 20th pin of sampling A/D chip U2 is connect with the pin 2 of capacitor C13, crystal oscillator OSC1, capacitor The pin 3 of the other end of C13 and capacitor C15 ground connection, crystal oscillator OSC1 is grounded, and the 23rd pin and resistance R11 of sampling A/D chip U2 connects It connects, the other end of resistance R11 is electrically connected with resistance R12, capacitor C12, MCU main control module, and resistance R12 and capacitor C12's is another End ground connection.

Preferably, the Clock battery detection circuit include: comparator U_1B, resistance R5, resistance R6, resistance R7, Resistance R8, resistance Ra, adjustable resistance Rse1, adjustable resistance Rse2, capacitor Ca1, capacitor Ca2, Light-emitting diode LED 1, luminous two Pole pipe LED2 and detected Clock battery place position B1；The 5th pin and detected Clock battery of comparator U_1B places position The cathode of B1 is electrically connected, and the 4th pin of comparator U_1B and the 6th pin an ancient unit of weight of comparator U_1B are grounded, one end of resistance R7 with It is detected the cathode electrical connection that Clock battery places position B1, one end and the 6th pin of comparator U_1B are grounded, comparator U_1B's 7th pin is electrically connected with resistance R6, resistance R8, and the other end of resistance R6 is electrically connected with power module, the other end of resistance R8 with The anode electrical connection of Light-emitting diode LED 1, the cathode ground connection of Light-emitting diode LED 1, anode and the electricity of Light-emitting diode LED 2 The cathode of source module electrical connection, Light-emitting diode LED 2 is electrically connected by resistance R5 with MCU main control module, and Clock battery is detected The anode for placing position B1 is electrically connected with resistance Ra, and the other end of resistance Ra is connect with adjustable resistance Rse1, meanwhile, with sampling A/D chip The end VIN+ of U2 is connected, and the other end of adjustable resistance Rse1 is connect with adjustable resistance Rse2, the other end of adjustable resistance Rse2 and The end VIN- of sampling A/D chip U2 is connected, and capacitor Ca1 is in parallel with adjustable resistance Rse1, capacitor Ca2 is in parallel with adjustable resistance Rse2, electricity The connecting pin for holding Ca1 and capacitor Ca2 is grounded, the other end ground connection of capacitor Ca2.

Preferably, that the MCU main control module selects is FM33A048.

Preferably, the sampling A/D chip U2 is RN8209D/G chip.

Preferably, the comparator U_1B is LM393.

Preferably, the resistance value of the resistance Ra is 5 to 8 times of adjustable resistance Rse1 or adjustable resistance Rse2 resistance value, Adjustable resistance Rse1 is identical with the amplitude of accommodation of adjustable resistance Rse2.

Preferably, the MCU main control module is also equipped with power on detection circuit, wanted when supply voltage meets chip power supply When asking, it just can star chip and work, the power on detection circuit, comprising: capacitor C1, resistance R1, resistance R2, resistance R3, described one end resistance R1 are connect with power module, and one end is connect with resistance R2, the other end and resistance R3 and electricity of resistance R2 Hold C1 connection, the other end ground connection of resistance R3 and capacitor C1.

Compared with prior art the utility model has the beneficial effects that: 1) Clock battery detection module group is by N number of clock Battery detection circuit composition, can detect N number of Clock battery simultaneously, can fast and efficiently detect inventory's Clock battery because depositing Putting environment, resting period and other reasons causes Clock battery performance to change defective products.2) use of the present apparatus can early stage Judge Clock battery performance, saves the energy of the links such as engineer's erroneous judgement, debugging, error correction cost.3) pass through graphical liquid crystal Display module, can the curve that changes over time of real-time display every group of sampled voltage, electric current, facilitate tester longitudinally to compare every group Difference, can it is qualitative, quantitatively determine Clock battery performance.

Detailed description of the invention

It, below will be to needed in embodiment description in order to illustrate more clearly of the technical solution of the utility model Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached Figure；

Fig. 1 is a kind of system block diagram of the utility model Intelligent electric energy meter clock battery performance test device.

Fig. 2 is a kind of circuit diagram of the MCU main control module of the utility model；

Fig. 3 is a kind of circuit diagram of the voltage and current sample circuit of the utility model；

Fig. 4 is a kind of circuit diagram of the Clock battery detection circuit of the utility model.

Specific embodiment

Below in conjunction with attached drawing, the above and other technical features and advantages of the present invention are described in more detail.

A kind of system block diagram of Intelligent electric energy meter clock battery performance test device is as shown in Figure 1, include MCU main control module 3, the graphical LCD MODULE 1 that is electrically connected with MCU main control module 3, alarm module 2, voltage and current sampling module group 4, when Clock battery detection module group 5, and to the power module 7 that modules are powered；The power module 7 is provided with switch key 8, switch key 8 is the metal key-press switch with self-locking function, for controlling the power-on and power-off of entire test device, the voltage Current sampling module group 4 is positive integer by N(N) a voltage and current sample circuit forms, such as: first voltage current sampling circuit 41, second voltage current sampling circuit 42 is to N voltage and current sample circuit 43, and the Clock battery detection module group is by N (N is positive integer) a Clock battery detection circuit composition, the first Clock battery detection circuit 51, second clock battery detection circuit 52 to N Clock battery detection circuit 53, and the voltage and current sample circuit and the Clock battery detection circuit are one by one Corresponding, such as: first voltage current sampling circuit 41 is electrically connected with the first Clock battery detection circuit 51, second voltage current sample Circuit 42 is electrically connected with second clock battery detection circuit 52, N voltage and current sample circuit 43 and N Clock battery detection electricity Road 53 is electrically connected.

Power module 7 is mainly that each functional module provides energy, it is ensured that modules energy is sufficient.

Graphical LCD MODULE 1 is used to the curve that real-time display every group of sampled voltage, electric current change over time, convenient Tester longitudinally compares every group of difference, intuitively judges that Clock battery itself whether there is failure.

2 main effect of alarm module is fault alarm.

A kind of circuit diagram of MCU main control module 3 is as shown in Fig. 2, be the minimum system schematic diagram of MCU main control module, comprising: Main control chip U1, capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor C6, capacitor C7, capacitor C8, capacitor C9, resistance R9, crystalline substance Shake X1, and the 26th pin of main control chip U1 is connect with capacitor C2, and the 59th pin of main control chip U1 is connect with capacitor C4, master control core The 60th pin of piece U1 is connect with the pin 1 of capacitor C3, crystal oscillator X1, the 61st pin and capacitor C5, crystal oscillator X1 of main control chip U1 Pin 4 connect, the pin 3 of the pin 2 of crystal oscillator X1 and crystal oscillator X1 are grounded, the 63rd pin and capacitor C7, electricity of main control chip U1 Hold C9 connection, capacitor C7 with capacitor C9 be it is in parallel, the 64th pin of main control chip U1 is connect with capacitor C8, main control chip U1's 65th pin is connect with capacitor C6, and the 80th pin of main control chip U1 is connect with resistance R9, and the 62nd pin of main control chip U1 connects Ground, capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor C6, capacitor C7, capacitor C8, capacitor C9 the other end connect.It is selected Main control chip U1 be the micro- FM33A048 of Fudan University, the chip pin is abundant, powerful, can satisfy multimode and controls jointly System, conversion, processing etc. require.The governor circuit of MCU main control module 3 is also equipped with power on detection circuit, leads when supply voltage meets When controlling chip U1 power reguirements, it just can star main control chip U1 and work.The power on detection circuit, comprising: capacitor C1, electricity R1, resistance R2, resistance R3 are hindered, described one end resistance R1 is connect with power module 7, and one end is connect with resistance R2, resistance R2's The other end is connect with resistance R3 and capacitor C1, the other end ground connection of resistance R3 and capacitor C1.

Shown in the circuit diagram 3 of voltage and current sample circuit, comprising: sampling A/D chip U2, capacitor C10, capacitor C11, capacitor C12, capacitor C13, capacitor C15, capacitor C16, capacitor C17, capacitor C18, capacitor C19, capacitor C20, capacitor C21, resistance R10, Resistance R11, resistance R12, resistance R15, resistance R16, resistance R17, crystal oscillator OS, the 1st pin and capacitor C10 of sampling A/D chip U2, The other end of capacitor C11, resistance R10 connection, capacitor C10 and capacitor C11 are grounded, the other end and the power module electricity of resistance R10 Connection, the 10th pin of sampling A/D chip U2 are connect with capacitor C16, capacitor C17, the other end ground connection of capacitor C16 and capacitor C17, The 11st pin of sampling A/D chip U2 is grounded, and the 12nd pin of sampling A/D chip U2 is connect with resistance R17, the other end of resistance R17 and Power module electrical connection, the 13rd pin of sampling A/D chip U2 are connect with resistance R15, other end resistance R16, the capacitor of resistance R15 The other end ground connection of the CALC_MISO1 pin electrical connection of C21, main control chip U1, resistance R16 and capacitor C21, sampling A/D chip U2 The 14th pin, the 15th pin respectively with the CALC_MOSI1 pin of main control chip U1, CALC_SCL1 pin be electrically connected, sampling The 16th pin of chip U2 is electrically connected with the CALC_SCS1 pin of capacitor C20, main control chip U1, another termination of capacitor C20 Ground, the 17th pin ground connection of sampling A/D chip U2, the 18th pin and capacitor C18, capacitor C19, the power module 7 of sampling A/D chip U2 connect It connects, the other end ground connection of capacitor C18 and capacitor C19, the 19th pin of sampling A/D chip U2 are connect with capacitor C15, sampling A/D chip U2 The 20th pin connect with capacitor C13, the other end of capacitor C13 and capacitor C15 ground connection, the 19th pin of sampling A/D chip U2 and the Crystal oscillator OS is connected between 20 pins, the 23rd pin of sampling A/D chip U2 is connect with resistance R11, the other end and resistance of resistance R11 The other end ground connection of the CF_Total pin electrical connection of R12, capacitor C12, main control chip U1, resistance R12 and capacitor C12.Sampling Chip U2 selects sharp RN8209D/G chip that can be micro-, and RN8209D/G chip has single+5V power supply power supply, and power consumption representative value is 32mV, temperature coefficient representative value are 25ppm/ °C, the built-in reference voltage of 2.5V+/- 3%, it is ensured that chip when powering on and powering off Reliably working.

The circuit diagram of Clock battery detection circuit is as shown in Figure 4, comprising: the Clock battery detection circuit includes comparing Device U_1B, resistance R5, resistance R6, resistance R7, resistance R8, resistance Ra, adjustable resistance Rse1, adjustable resistance Rse2, capacitor Ca1, Capacitor Ca2, Light-emitting diode LED 1, Light-emitting diode LED 2 and detected Clock battery place position B1；Comparator U_1B's 5th pin is electrically connected with the cathode that detected Clock battery places position B1, and the 4th pin of comparator U_1B is with comparator U_1B's 6th pin an ancient unit of weight ground connection, one end of resistance R7 are electrically connected with the cathode that detected Clock battery places position B1, one end and comparator U_ The 6th pin of 1B is grounded, and the 7th pin of comparator U_1B is electrically connected with resistance R6, resistance R8, the other end and power supply of resistance R6 Module electrical connection, the other end of resistance R8 are electrically connected with the anode of Light-emitting diode LED 1, and the cathode of Light-emitting diode LED 1 connects The anode on ground, Light-emitting diode LED 2 is electrically connected with power module 7, and the cathode of Light-emitting diode LED 2 passes through resistance R5 and master control The LED2 pin of chip U1 is electrically connected, and the anode for being detected Clock battery placement position B1 is electrically connected with resistance Ra, and resistance Ra's is another One end is connect with adjustable resistance Rse1, meanwhile, be connected with the end VIN+ of sampling A/D chip U2, the other end of adjustable resistance Rse1 with can Resistance Rse2 connection is adjusted, the other end of adjustable resistance Rse2 is connected with the end VIN- of sampling A/D chip U2, capacitor Ca1 and adjustable resistance Rse1 is in parallel, capacitor Ca2 is in parallel with adjustable resistance Rse2, the connecting pin ground connection of capacitor Ca1 and capacitor Ca2, and capacitor Ca2's is another End ground connection.The chip that comparator U_1B is selected is LM393, and LM393 has working power voltage range wide, single supply, dual power supply It can work, consumption electric current is small, and output and TTL, DTL, MOS, CMOS etc. are compatible；Clock battery is placed position B1 and is had when detected When Clock battery is plugged, the LED1 in corresponding diagram be can be lit, while MCU detects that the corresponding output pin of LM393 becomes high electricity It is flat, then enable corresponding sampling A/D chip U2.Wherein, the resistance value of resistance Ra is adjustable resistance Rse1 or adjustable resistance Rse2 resistance value 5 to 8 times, two adjustable resistance Rse1 and the adjustable resistance Rse2 amplitude of accommodation want identical.Pass through the sampling to voltage, Ke Yiji Current value is calculated, then passes through the processing of MCU main control module 3, real-time display resistance Clock battery voltage, curent change situation are fixed Property, quantitatively judge Clock battery performance.

The function of MCU main control module 3 mainly has: 1) real-time voltage, current value that voltage and current sample circuit transmits are received, And do corresponding optimization processing；2) voltage, the electric current after optimization processing are changed over time into situation real-time Transmission to graphical LCD MODULE 1；3) each detected Clock battery places whether position B1 has Clock battery insertion for detection.For example, when not having When Clock battery, Light-emitting diode LED 1(such as: Light-emitting diode LED 1 be red) be in OFF state；When have Clock battery insert When upper, corresponded to the Light-emitting diode LED 1(of station such as: Light-emitting diode LED 1 is red) it is lit；4) detection Clock battery is No there are hidden danger, when Clock battery voltage, the current value that the liquid crystal display of graphical LCD MODULE 1 is shown are lower than some When threshold value, MCU main control module detects fault cues, passes through the alarm of control alarm module 2 while lighting shining for corresponding station Diode (LED) 2(is such as: Light-emitting diode LED 2 is green) tester is reminded, there are failures for the Clock battery of the station.

Voltage and current sampling module group 4 is positive integer by N(N) a voltage and current sample circuit forms, N number depend on The design (being designed according to the actual demand of user, such as: N=4) of entire circuit, respectively believes the electric current of the road N Clock battery, voltage Breath carries out sampling processing.The sample circuit is made of elements such as adjustable resistance, filter capacitor, current-voltage sampling chips, adjustable Resistance main function controls the amplitude of sampled voltage, electric current.For N group adjustable resistance under same test condition, selection is identical can Adjust resistance.

Clock battery detection module group 5 is made of N number of Clock battery detection circuit, can place N number of Clock battery simultaneously It is tested, quickly and easily comparison identification, detection Clock battery whether there is failure.Every road Clock battery detection circuit is matched There are LED light group, Light-emitting diode LED 1 and Light-emitting diode LED 2, LED light group is used to visually show and remind tester Whether member's measured clock battery is correctly installed, and has foolproof function.Meanwhile when measured clock battery breaks down, corresponding mould The Light-emitting diode LED 2 of block can be lit, and cooperates with alarm module 2, prompts faulty and failure specific location jointly.

The utility model patent devise one kind can Rapid identification Intelligent electric energy meter clock battery performance test device, survey Trial assembly sets that there are N number of detected Clock batteries to place position B1, can be with for the Clock battery just got from Component library It is placed directly into detected Clock battery to place on the B1 of position, each detected Clock battery places position B1 and is equipped with connection indicator light (Light-emitting diode LED 1) and alarm lamp (Light-emitting diode LED 2), while design has warning circuit.By switch key, Start the present apparatus, it is corresponding to be detected when some, which is detected Clock battery placement position B1, has Clock battery to be inserted into and contact good The connection indicator light (Light-emitting diode LED 1) that Clock battery places position B1 can be lit.According to actual needs, it can adjust manually Adjustable resistance on regulating device, controls the size of electric current, and the present apparatus is furnished with liquid crystal display, can visually show each quilt Detection Clock battery places the curve that Clock battery voltage, electric current change over time on the B1 of position.When performance occur different for Clock battery Chang Shi, alarm module 2 can issue alarm signal, while the alarm lamp that corresponding detected Clock battery places position B1 (shines Diode (LED) 2) it can flash, it is accurate to determine defective batteries specific location.In combination with voltage, electric current on corresponding liquid crystal display Change over time curve, performance that is qualitative, quantitatively determining Clock battery.

Embodiment described above, only specific embodiment of the present utility model, to illustrate the technology of the utility model Scheme, rather than its limitations, scope of protection of the present invention is not limited thereto, although carrying out with reference to the foregoing embodiments to the present invention Detailed description, those skilled in the art should understand that: anyone skilled in the art is in this hair In the technical scope of bright exposure, still it can modify or can readily occur in technical solution documented by previous embodiment Variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make corresponding skill Art scheme essence be detached from technical solution of the embodiment of the present invention spirit and scope, should all cover protection scope of the present invention it It is interior.

Claims (8)

1. Intelligent electric energy meter clock battery performance test device, which is characterized in that including MCU main control module, with MCU main control module Graphical LCD MODULE, the alarm module, voltage and current sampling module group, Clock battery detection module group of electrical connection, with And to the power module that modules are powered；The power module, which is equipped with, can control the switch of entire test device power-on and power-off to press Key, the voltage and current sampling module group are made of N number of voltage and current sample circuit, the Clock battery detection module group It is made of N number of Clock battery detection circuit, the voltage and current sample circuit and the Clock battery detection circuit are one by one It is corresponding.

2. a kind of Intelligent electric energy meter clock battery performance test device according to claim 1, it is characterised in that: described Voltage and current sample circuit includes sampling A/D chip U2, capacitor C10, capacitor C11, capacitor C12, capacitor C13, capacitor C15, capacitor C16, capacitor C17, capacitor C18, capacitor C19, capacitor C20, capacitor C21, resistance R10, resistance R11, resistance R12, resistance R15, The 1st pin of resistance R16, resistance R17, crystal oscillator OSC1, sampling A/D chip U2 are connect with capacitor C10, capacitor C11, resistance R10, electricity Hold the other end ground connection of C10 and capacitor C11, the other end of resistance R10 is electrically connected with power module, the 10th pipe of sampling A/D chip U2 Foot is connect with capacitor C16, capacitor C17, and the other end ground connection of capacitor C16 and capacitor C17, the 11st pin of sampling A/D chip U2 connect 12nd pin on ground, sampling A/D chip U2 is connect with resistance R17, and the other end of resistance R17 is electrically connected with power module, sampling A/D chip The 13rd pin of U2 is connect with resistance R15, the other end resistance R16 of resistance R15, the electrical connection of capacitor C21, MCU main control module, electricity The other end ground connection of R16 and capacitor C21 is hindered, the 14th pin, the 15th pin and the MCU main control module of sampling A/D chip U2 is electrically connected, The 16th pin of sampling A/D chip U2 is electrically connected with capacitor C20, MCU main control module, the other end ground connection of capacitor C20, sampling A/D chip The 17th pin of U2 is grounded, and the 18th pin of sampling A/D chip U2 is connect with capacitor C18, capacitor C19, power module, capacitor C18 with The other end of capacitor C19 is grounded, and the 19th pin of sampling A/D chip U2 is connect with capacitor C15, the pin 1 of crystal oscillator OSC1 connects, and is adopted The 20th pin of sample chip U2 is connect with the pin 2 of capacitor C13, crystal oscillator OSC1, the other end ground connection of capacitor C13 and capacitor C15, The pin 3 of crystal oscillator OSC1 is grounded, and the 23rd pin of sampling A/D chip U2 is connect with resistance R11, the other end and resistance of resistance R11 The other end ground connection of R12, the electrical connection of capacitor C12, MCU main control module, resistance R12 and capacitor C12.

3. a kind of Intelligent electric energy meter clock battery performance test device according to claim 1, it is characterised in that: described Clock battery detection circuit includes comparator U_1B, resistance R5, resistance R6, resistance R7, resistance R8, resistance Ra, adjustable resistance Rse1, adjustable resistance Rse2, capacitor Ca1, capacitor Ca2, Light-emitting diode LED 1, Light-emitting diode LED 2 and detected clock Battery places position B1；The 5th pin of comparator U_1B is electrically connected with the cathode that detected Clock battery places position B1, comparator U_ The 4th pin of 1B and the 6th pin an ancient unit of weight of comparator U_1B are grounded, and one end of resistance R7 and detected Clock battery place position B1's The 6th pin of cathode electrical connection, one end and comparator U_1B are grounded, the 7th pin and resistance R6, the resistance R8 electricity of comparator U_1B Connection, the other end of resistance R6 are electrically connected with power module, and the other end of resistance R8 and the anode of Light-emitting diode LED 1 are electrically connected It connects, the cathode ground connection of Light-emitting diode LED 1, the anode of Light-emitting diode LED 2 is electrically connected with power module, light emitting diode The cathode of LED2 is electrically connected by resistance R5 with MCU main control module, and anode and resistance Ra that Clock battery places position B1 are detected Electrical connection, the other end of resistance Ra are connect with adjustable resistance Rse1, meanwhile, it is connected with the end VIN+ of sampling A/D chip U2, adjustable electric The other end of resistance Rse1 is connect with adjustable resistance Rse2, the end the VIN- phase of the other end and sampling A/D chip U2 of adjustable resistance Rse2 Even, capacitor Ca1 is in parallel with adjustable resistance Rse1, capacitor Ca2 is in parallel with adjustable resistance Rse2, the connection of capacitor Ca1 and capacitor Ca2 End ground connection, the other end ground connection of capacitor Ca2.

4. Intelligent electric energy meter clock battery performance test device according to claim 1 or 2 or 3, which is characterized in that described MCU main control module select be FM33A048.

5. Intelligent electric energy meter clock battery performance test device according to claim 2 or 3, which is characterized in that described Sampling A/D chip U2 is RN8209D/G chip.

6. Intelligent electric energy meter clock battery performance test device according to claim 3, which is characterized in that the comparison Device U_1B is LM393.

7. Intelligent electric energy meter clock battery performance test device according to claim 3, which is characterized in that the resistance The resistance value of Ra is 5 to 8 times of adjustable resistance Rse1 or adjustable resistance Rse2 resistance value, adjustable resistance Rse1 and adjustable resistance Rse2's The amplitude of accommodation is identical.

8. Intelligent electric energy meter clock battery performance test device according to claim 1 or 2 or 3, which is characterized in that described MCU main control module be also equipped with power on detection circuit, the power on detection circuit, including capacitor C1, resistance R1, resistance R2, The one end resistance R3, resistance R1 is connect with power module, and one end is connect with resistance R2, the other end and resistance R3 and capacitor of resistance R2 The other end of C1 connection, resistance R3 and capacitor C1 are grounded.