CN105356822B - A kind of two-way machine operating condition monitoring modular - Google Patents
A kind of two-way machine operating condition monitoring modular Download PDFInfo
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- CN105356822B CN105356822B CN201510859372.4A CN201510859372A CN105356822B CN 105356822 B CN105356822 B CN 105356822B CN 201510859372 A CN201510859372 A CN 201510859372A CN 105356822 B CN105356822 B CN 105356822B
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Abstract
The present invention relates to a kind of two-way machine operating condition monitoring modular, including five power transfer module, signal acquisition module, core controller module, Signal-regulated kinase and information exchange module parts；Power transfer module is to export conversion as the DC12V voltage stabilizings needed for power module carries out PCB；Signal acquisition module includes motor rotational pulse signal acquisition and motor surface temperature signal gathers；Core controller module is core processor from C8051F006 48TQFP；Signal-regulated kinase includes gain amplification, electric current output and output switch parameter；Information exchange module is that module parameter is set with interacting using interrupt mode by core processor.The beneficial effects of the invention are as follows：Simple in construction, easy for installation, cost-effective, funtion part can be reduced according to system integration demand, be easy to carry out Seamless integration- with systems such as industrial PLC, DCS, have good application and popularization value.
Description
Technical field
It can be reduced the present invention relates to a kind of function, the solution of cost-effective single channel machine operating condition monitoring, especially
It is related to a kind of two-way machine operating condition monitoring modular, belongs to electrical engineering field.
Background technology
Nowadays, with the increasingly raising of living standard, use of the people to motor is more and more extensive, becomes increasingly dependent on,
In real life, maintenance and monitoring to motor use state, are vital.Foundry Works's electric-driving installation is with stepping
Based on motor, load motor and three phase alternating current motor application, for non-frequency or servo applications, detection motor is actual in itself
The conventional methods of operating condition or parameter are proximity switch, rotary transformer, photoelectric encoder.Proximity switch exports shape with pulse
In formula detection low-speed running whether and running speed, it is but helpless to the state-detection within one turn, can then increase to subdivision
Add proximity switch number and mechanical erection difficulty；Rotary transformer is more in the form of 0~10V voltage outputs, increment photoelectric coding
Device detects motor speed with pulse output form, and absolute optical encoder detects motor rotations, combined type light by correspondence
Photoelectric coder combination increment type and absolute optical encoder function, rotary transformer is high with photoelectric encoder price and machinery is pacified
It is big to fill difficulty, especially the narrow place of installing space.The rare display rotating speed directly perceived of all conventional detection methods and motor temperature are corresponding
Data, it is unfavorable for live inspection and troubleshooting.Therefore, how a kind of more intuitively two-way machine operating condition monitoring modular is provided,
It is the purpose that the present invention studies.
The content of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of two-way machine operating condition monitoring modular, using magnetic force
Surface-mount type temperature sensor, comprising LED liquid crystal displays, it is easy to display data directly perceived and integrated, it is simple installation, cost-effective.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of two-way machine operating condition monitoring modular, including power transfer module, signal acquisition module, core controller
Module, Signal-regulated kinase and information exchange module；
Described power transfer module is to export conversion as the DC12V voltage stabilizings needed for power module carries out PCB；；Described
Power module selects ZY2412WHBBD-3W；Described Power convert is that DC12V is converted into temperature using three terminal regulator to pass
DC5V power supplys needed for sensor, rear class power conversion chip CAT6219 provide stable DC3.3V power supplies for monitoring modular；
Described three terminal regulator selects LM7805；
Described signal acquisition module includes motor rotational pulse signal acquisition and motor surface temperature signal gathers；It is described
Motor rotational pulse signal acquisition be hose clamp type photoelectric code disk to be anchored on motor shaft or shaft coupling is tied, code-disc hollow out and entity
Marginal portion is placed between the groove of fluted body optocoupler, by setting code-disc hollow out number, makes motor pulse under rated speed
Output frequency is less than or equal to 1KHz,；Described optocoupler uses fluted body optocoupler EE-SX97；Described pulse frequency is proportional to electricity
Machine rotating speed；Described motor surface temperature signal collection is to use magnetic force Surface Mount temperature sensor to be installed for magnet steel absorption type, is resisted
Interference is strong, realizes the measurement to motor surface temperature；Described magnetic force Surface Mount temperature sensor selects BT-3 (DS18B20)；；
Described core controller module is core processor from C8051F006-48TQFP；Described C8051F006-
48TQFP core processors port IO crossbar configurations simultaneously possess 5V voltage tolerants, built-in programming OSC, I2C, SPI, UART,
TEMP sensings, 2 INT, 4 Timer, 16 GPIO, 8 passage ADC (12bit, 100ksps), 2 passage DAC (12bit,
100ksps), 2 channel voltage comparator, multi-source resets and minimum power consumption system is supported to meet Functional Design and low-power consumption demand；
Described C8051F006-48TQFP core processors are powered using 3.3V single supplies（2.7V~3.6V）；
Described Signal-regulated kinase includes gain amplification, electric current output and output switch parameter；Described gain amplification is adopted
0 ~ 3.3V is amplified to industrial control standard 0~10V of voltage with two-way instrument with amplifier INA2128, its gain calculates and uses formula
Ga=1+(50K Ω/R6), Gb=1+(50K Ω/R7), described R6 and R7 are the two-way instrument amplifier
Adjustable resistance in INA2128；It is by adjusting variable resistor R6 and R7 respectively that the described gain voltage upper limit, which is consistent,；Institute
It is that 0~10V voltage signals are converted into 4~20mA electricity using non-isolated series of signals conditioning module ZCM4561S to state electric current output
Signal output is flowed, output gain adjustment is carried out by R12 and R13, described non-isolated series of signals conditioning module is selected
ZCM4561S；Described R12 and R13 is the adjustable resistance in the non-isolated series of signals conditioning module ZCM4561S；It is described
Output switch parameter refer under external power source electric power thus supplied, rotated according to motor and whether too high motor surface temperature is differentiates feelings
Condition, the alarm load output for being up to 2.5A is provided using optical relay TLP3554；
Described information exchange module uses pulse using C8051F006-48TQFP core processors using interrupt mode
Signal frequency is converted to analog voltage signal corresponding to rotating speed（0~3.3V）Output, One Wire communication protocol are gathered and changed
DS18B20 temperature sensing datas, SPI communication agreement carry out the instruction of LCD motor datas, UART chip SP3485 carries out Modbus
RTU communications, I2C communication protocols carry out module parameter with the EEPROM built in reset chip CAT1025SI and set with interacting；It is described
Module parameter setting include Rated motor rotating speed, whether photoelectric code disk hollow out number, motor rotate judgement threshold, motor temperature
Spend high alarm threshold, serial communication address.
Further, the wide pressure input range DC9~36V of described Power convert parameter setting, conversion efficiency 79%, work
Temperature -40~85 DEG C, maximum load 250mA, there is the functions such as short-circuit protection, sustainable short circuit, self- recoverage, meet that module should
With.
Further, Rated motor rotating speed 3600rpm, hose clamp type photoelectric code disk hollow out number are taken as 16, corresponding output arteries and veins
It is 960Hz to rush frequency.
Further, described magnetic force Surface Mount temperature sensor BT-3 (DS18B20) temperature-measuring range -55~125 DEG C, -
Precision is ± 0.5 DEG C at 10~85 DEG C, supports " one-wire bus " interface and multiple spot networking function, i.e., multiple temperature sensors can be simultaneously
Hang together on unique three line.
Further, described Power convert is converted to DC12V needed for temperature sensor using three terminal regulator
DC5V power supplys, rear class power conversion chip CAT6219 provide stable DC3.3V power supplies for monitoring modular.
Further, described hollow out is each tall and big in 2.1mm, is wider than 1mm, thickness is more than 0.2mm, and hollow out interval is more than
1mm。
Further, the built-in programming OSC, I2C of described core processor C8051F006-48TQFP, SPI, UART,
TEMP sensings, 2 INT, 4 Timer, 16 GPIO, 8 passage ADC (12bit, 100ksps), 2 passage DAC (12bit,
100ksps), 2 channel voltage comparator, multi-source is resetted and minimum power consumption system is supported.
The beneficial effects of the invention are as follows：Simple in construction, easy for installation, cost-effective, funtion part can be according to the system integration
Demand is reduced, and is easy to carry out Seamless integration- with systems such as industrial PLC, DCS, has good application and popularization value.
Brief description of the drawings
Fig. 1 is the system construction drawing of the present invention；
Fig. 2（a）For hose clamp type photoelectric code disk structure chart of the present invention；
Fig. 2（b）For hose clamp type photoelectric code disk of the present invention and fluted body optocoupler combination diagram；
Fig. 3 is optocoupler pulse signal acquisition circuit analysis chart of the present invention；
Fig. 4 is voltage gain circuit analysis chart；
Fig. 5 is that voltage signal is converted to current signal circuit analysis figure；
Fig. 6 is switching value output circuit analysis chart；
Fig. 7 is reset and parameter configuration eeprom circuit analysis chart；
Fig. 8 is the working condition software flow pattern of the present invention, wherein：
Fig. 8（a）Flow is initialized for main program of the present invention；
Fig. 8（b）It is external interrupt flow (c)；
Fig. 8（d）With（e）For timer interruption flow；
Fig. 8（f）Modbus communication disruption flow charts.
Embodiment
In order that those skilled in the art more fully understand technical scheme, with reference to specific embodiment to this
Invention is described in further detail.
1-8 is further analyzed to the present invention below in conjunction with the accompanying drawings：
1. as shown in figure 1, predominantly following five parts of the function composition of monitoring modular of the present invention：Power convert mould
Block, signal acquisition module, core controller module, Signal-regulated kinase and information exchange module.
Power transfer module carries out the DC12V voltage stabilizings output conversion needed for PCB using ZY2412WHBBD-3W power modules,
Width pressure input range DC9~36V, conversion efficiency 79%, operating temperature -40~85 DEG C, maximum load 250mA, has short-circuit protection
Etc. function, sustainable short circuit, self- recoverage, meet module application；DC12V is converted into temperature using three terminal regulator LM7805 to pass
DC5V power supplys needed for sensor, rear class power conversion chip CAT6219 provide stable DC3.3V power supplies for monitoring modular.
As shown in Figure 2 and Figure 3, signal acquisition module includes：
1. motor rotational pulse signal acquisition
Hose clamp type photoelectric code disk is anchored on motor shaft or shaft coupling is tied, code-disc hollow out and entity edge part are placed in optocoupler
Between EE-SX97 grooves, by setting code-disc hollow out number (hollow out size and interval cannot be less than Fig. 3 illustrated dimensions), make electricity
Machine pulse output frequencies under rated speed are less than or equal to 1KHz (pulse frequency is proportional to motor speed).Such as：Rated motor turns
Fast 3600rpm (conversion is 60rps), then hose clamp type photoelectric code disk hollow out number is taken as 16 (1000/60=16.7), corresponds to defeated
It is 960Hz to go out pulse frequency.
Fluted body optocoupler possesses 7 kinds of different installation forms, and convenient scene is fixed according to installing space and angle.Using
TLP521-1 carries out signal isolation and voltage matches.
2. motor surface temperature signal gathers
Magnetic force Surface Mount temperature sensor BT-3 (DS18B20) is used to be installed for magnet steel absorption type, strong interference immunity, realization pair
The measurement of motor surface temperature." one-wire bus " interface and multiple spot networking function are supported, i.e., multiple temperature sensors can and be hung together
On unique three line.Temperature-measuring range -55~125 DEG C, at -10~85 DEG C, precision is ± 0.5 DEG C.
Core controller module is using C8051F006-48TQFP as core processor, the power supply of 3.3V single supplies（2.7V~
3.6V）, port IO crossbar configuration and can possess 5V voltage tolerants, and built-in programmable OSC, I2C, SPI, UART, TEMP are passed
Sense, 2 INT, 4 Timer, 16 GPIO, 8 passage ADC (12bit, 100ksps), 2 passage DAC (12bit, 100ksps), 2
Channel voltage comparator, multi-source reset and the support of minimum power consumption system etc. meet Functional Design and low-power consumption demand.
Signal-regulated kinase includes：
1. gain is amplified
0 ~ 3.3V is amplified to by industrial control standard 0~10V of voltage with amplifier INA2128 using two-way instrument, its gain meter
Calculation uses formula Ga=1+(50K Ω/R6) (similarly Gb=1+(50K Ω/R7)), can power transformation by adjusting respectively
R6 and R7 is hindered, upper voltage limit is consistent before and after making gain, such as Fig. 4.
2. 4~20mA electric currents export
Using non-isolated series of signals conditioning module ZCM4561S, 0~10V voltage signals are converted into 4~20mA electric currents
Signal output, output gain adjustment, such as Fig. 5 are carried out by adjustable resistance R12 and R13.
3. output switch parameter
Under external power source electric power thus supplied, differentiate situation according to whether too high motor rotation and motor surface temperature be, use
Optical relay TLP3554 provides the alarm load output for being up to 2.5A, such as Fig. 6.
Information exchange module includes：
Core processor uses interrupt mode acquisition pulse signal frequency, is converted to analog voltage signal corresponding to rotating speed
(0 ~ 3.3V of DC) is exported；Gathered using One Wire communication protocol and change DS18B20 temperature sensing datas；Assisted using SPI communication
View carries out LCD motor data instructions；Modbus RTU communications are carried out using UART chip SP3485；Using I2C communication protocols with
EEPROM built in reset chip CAT1025SI carries out module parameter (Rated motor rotating speed, photoelectric code disk hollow out number, motor
Whether rotate the too high alarm threshold of judgement threshold, motor temperature, serial communication address) set with interacting；Such as Fig. 7.
As shown in figure 8, the software flow for the present invention：After monitoring modular main program initial configuration, each functional requirement master
Interrupt mode is used to realize.
Initialization：After core processor C8051F006 electrification resets, internal 16MHz crystal oscillator clocks configuration is carried out.Delay is steady
After fixed, to chip pin function distribution, IO input and output feature, SPI/I2C/UART communications, timer 0/1 are interrupted, INT0/1
Peripheral functionality built in rising edge interruption etc. is configured, and all interruptions of this step are enabled to be needed to close, to prevent program fleet.Read afterwards
The data that are stored in EEPROM built in reset chip simultaneously configure peripheral functionality parameter, it is each interrupt it is enabled after, then into park mode,
To reduce module dissipation.
External interrupt：The pulse signal after isolation matches is received, often enters and once interrupts, what corresponding motor pulses counted
Static variable adds 1.
Timer 3 interrupts：Automatic to reload 16 bit timing devices (beat is set to 10ms), the quiet hour adds up after interruption every time
Value plus 1, count to 99 at intervals of 1s after, time accumulated value reset.Respectively to the currency of motor 1 and the step-by-step counting of motor 2 with going through
History value takes difference, and the current rotating speed of motor is conversed according to photoelectric code disk hollow out number, and corresponding simulation electricity is exported according to rated speed
Pressure value.If whether current rotating speed rotates judgement threshold, optical relay action more than motor.
Timer 4 interrupts：Automatic to reload 16 bit timing devices (beat is set to 10ms), the quiet hour adds up after interruption every time
Value plus 1, count to 9 at intervals of 100ms after, time accumulated value reset.Motor surface temperature value is read by 1-wire bus agreement.
If Current Temperatures are more than the too high alarm threshold of motor temperature, optical relay action.Carry out LCD human-machine interactive informations more afterwards
Newly (the current rotating speed of Modbus mailing addresses, motor 1 and motor 2, rated speed, the percentage for accounting for rated speed, motor surface
Temperature etc.).
Modbus communication disruptions：When first powering on, give tacit consent to 9600bps, no parity check, 8 data bit, 1 stop position, lead to
It is 1 to believe address, and user can be configured according to real needs, and the data of configuration are preserved into the EEPROM built in reset chip,
Power-off restarting presses configuration take-effective after hand-reset key.Data length parsing is carried out according to data write-in or reading order, connect
Judged after receiving CRC check, verification is correct then to give feedback output.
In summary, monitoring modular design structure of the present invention is terse, utilizes hose clamp type photoelectric code disk, fluted body light
Coupling and magnetic force surface-mount type temperature sensor provide a kind of simple installation, cost-effective two-way machine operating condition monitoring solution party
Case.Module has the multi-signal way of outputs such as pulse, voltage, electric current, optical relay switching value, LCD, Modbus RTU, respectively
Funtion part can be reduced according to system integration demand, and easily can carry out Seamless integration- with systems such as industrial PLC, DCS,
With good application and popularization value.
Technical scheme provided herein is described in detail above, embodiment used herein is to the application
Principle and embodiment be set forth, the explanation of above example is only intended to help and understands the present processes and its core
Thought is thought；Meanwhile for those of ordinary skill in the art, according to the thought of the application, in embodiment and using model
There will be changes are placed, in summary, this specification content should not be construed as the limitation to the application.
Claims (6)
- A kind of 1. two-way machine operating condition monitoring modular, it is characterised in that：Including power transfer module, signal acquisition module, Core controller module, Signal-regulated kinase and information exchange module；Described power transfer module is to export conversion as the DC12V voltage stabilizings needed for power module carries out PCB；Described power supply mould Block selects ZY2412WHBBD-3W；The three terminal regulator of the power transfer module selects LM7805；Described signal acquisition mould Block includes motor rotational pulse signal acquisition and motor surface temperature signal gathers；Described motor rotational pulse signal acquisition is Hose clamp type photoelectric code disk is anchored on motor shaft or shaft coupling is tied, code-disc hollow out and entity edge part are placed in fluted body optocoupler Between groove, by setting code-disc hollow out number, motor pulse output frequencies under rated speed are made to be less than or equal to 1KHz；It is described Optocoupler use fluted body optocoupler EE-SX97；Described pulse output frequencies are proportional to motor speed；Described motor surface temperature Degree signal acquisition is to use magnetic force Surface Mount temperature sensor to be installed for magnet steel absorption type, strong interference immunity, is realized to motor surface The measurement of temperature；Described magnetic force Surface Mount temperature sensor model selects BT-3, DS18B20；Described core controller module It is core processor from C8051F006-48TQFP；Described C8051F006-48TQFP core processors port IO, which intersects, to be opened Close and configure and possess 5V voltage tolerants；Described C8051F006-48TQFP core processors are powered using 3.3V single supplies；Institute The voltage range for the single supply stated selects 2.7V ~ 3.6V；Described Signal-regulated kinase includes gain amplification, electric current output and opened Pass amount output；Described gain is amplified is amplified to industrial control standard voltage 0 with amplifier INA2128 using two-way instrument by 0 ~ 3.3V ~10V, its gain are calculated using formula Ga=1+(50K Ω/R6), Gb=1+(50K Ω/R7), described R6 It is the adjustable resistance in the two-way instrument amplifier INA2128 with R7；It is by dividing that the upper voltage limit of gain amplification, which is consistent, Tiao Zheng not variable resistor R6 and R7；The electric current output is to use non-isolated series of signals conditioning module ZCM4561S by 0~10V Voltage signal is converted to the output of 4~20mA current signals, and output gain adjustment, described non-isolated system are carried out by R12 and R13 Column signal conditioning module selects ZCM4561S；Described R12 and R13 is the non-isolated series of signals conditioning module ZCM4561S In adjustable resistance；Described output switch parameter refers under external power source electric power thus supplied, according to motor rotation and motor surface Whether too high temperature is differentiates situation, and the alarm load output for being up to 2.5A is provided using optical relay TLP3554；Described information Exchange module and rotating speed is converted to using pulse signal frequency using interrupt mode using C8051F006-48TQFP core processors Corresponding 0 ~ 3.3V of analog voltage signal outputs, One Wire communication protocol gather and change DS18B20 temperature sensing datas, SPI Communication protocol carries out the instruction of LCD motor datas, UART chip SP3485 carries out Modbus RTU communications, I2C communication protocols are with answering EEPROM built in the chip CAT1025SI of position carries out module parameter and set with interacting；The setting of described module parameter includes electricity Whether machine rated speed, photoelectric code disk hollow out number, motor rotate the too high alarm threshold of judgement threshold, motor temperature, serially lead to Believe address.
- A kind of 2. two-way machine operating condition monitoring modular according to claim 1, it is characterised in that：Described power supply turns Change the mold the wide pressure input range DC9~36V of parameter setting of block, conversion efficiency 79%, operating temperature -40~85 DEG C, maximum load 250mA。
- A kind of 3. two-way machine operating condition monitoring modular according to claim 1, it is characterised in that：Signal acquisition module In, described Rated motor rotating speed 3600rpm, hose clamp type photoelectric code disk hollow out number is taken as 16, and corresponding output pulse frequency is 960Hz；- 55~125 DEG C described of magnetic force Surface Mount temperature sensor temperature-measuring range, at -10~85 DEG C, precision is ± 0.5 DEG C, Support " one-wire bus " interface and multiple spot networking function, i.e., multiple temperature sensors can parallel connection hang on unique three line.
- A kind of 4. two-way machine operating condition monitoring modular according to claim 1, it is characterised in that：Described power supply turns Mold changing block is to use three terminal regulator that DC12V is converted to the DC5V power supplys needed for temperature sensor, rear class power conversion chip CAT6219 provides stable DC3.3V power supplies for monitoring modular.
- A kind of 5. two-way machine operating condition monitoring modular according to claim 1, it is characterised in that：Described hollow out is every It is individual tall and big in 2.1mm, it is wider than 1mm, thickness is more than 0.2mm, and hollow out interval is more than 1mm.
- A kind of 6. two-way machine operating condition monitoring modular according to claim 1, it is characterised in that：At described core Manage built-in programming OSC, I2C, SPI, UART, TEMP sensing of device C8051F006-48TQFP, 2 INT, 4 Timer, 16 GPIO, 8 passage ADC, 2 passage DAC, 2 channel voltage comparators, multi-source is resetted and minimum power consumption system is supported；8 described passages ADC is 12bit, 100ksps；2 described passage DAC are 12bit, 100ksps.
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| CN106154956B (en) * | 2016-08-29 | 2018-08-28 | 苏州盖恩茨电子科技有限公司 | A kind of intelligent electric-controlled drive-type temperature control simple two-way signal collector |
| CN108955917A (en) * | 2018-08-15 | 2018-12-07 | 四川西南交大铁路发展股份有限公司 | A kind of rail temperature measuring device and system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390780A (en) * | 2011-11-07 | 2012-03-28 | 奥力通起重机(北京)有限公司 | Safety monitor |
| CN203396914U (en) * | 2013-06-24 | 2014-01-15 | 大连民族学院 | Motor running state monitoring and fault detection system |
| CN203894621U (en) * | 2014-06-09 | 2014-10-22 | 广东志高空调有限公司 | Motor running state monitoring system |
| CN205283453U (en) * | 2015-12-01 | 2016-06-01 | 宁夏共享集团股份有限公司 | Double - circuit motor running condition monitoring module |
-
2015
- 2015-12-01 CN CN201510859372.4A patent/CN105356822B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390780A (en) * | 2011-11-07 | 2012-03-28 | 奥力通起重机(北京)有限公司 | Safety monitor |
| CN203396914U (en) * | 2013-06-24 | 2014-01-15 | 大连民族学院 | Motor running state monitoring and fault detection system |
| CN203894621U (en) * | 2014-06-09 | 2014-10-22 | 广东志高空调有限公司 | Motor running state monitoring system |
| CN205283453U (en) * | 2015-12-01 | 2016-06-01 | 宁夏共享集团股份有限公司 | Double - circuit motor running condition monitoring module |
Non-Patent Citations (2)
| Title |
|---|
| 基于DSP的电机控制与状态监测系统设计;席鑫宁 等;《大电机技术》;20090515(第3期);第31-33、37页 * |
| 异步电机运行状态监测实验系统设计;付月辉 等;《仪表技术与传感器》;20090615(第6期);第81-84页 * |
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Effective date of registration: 20190315 Address after: 750021 550 Beijing West Road, Xixia District, Yinchuan, Ningxia Patentee after: KOCEL EQUIPMENT CO., LTD. Address before: 750021 550 Beijing West Road, Xixia District, Yinchuan, the Ningxia Hui Autonomous Region Patentee before: KOCEL GROUP LIMITED |