diff --git a/.travis.yml b/.travis.yml
index 7ed6924e..7e85ab59 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -27,7 +27,7 @@ matrix:
   include:
     - name: "code quality analysis: flake8"
       before_install:
-        - pip install flake8
+        - python -m pip install flake8
       install:
         - ""  # prevent running "pip install -r requirements.txt"
       script:
@@ -48,7 +48,7 @@ matrix:
         # update pip & setuptools
         - python -m pip install --upgrade pip wheel setuptools
         # Linux install script
-        - pip install https://pip.vnpy.com/colletion/ibapi-9.75.1-001-py3-none-any.whl
+        - python -m pip install https://pip.vnpy.com/colletion/ibapi-9.75.1-001-py3-none-any.whl
         - bash ./install.sh
 
     - name: "sdist install under Ubuntu: gcc-7"
@@ -73,11 +73,11 @@ matrix:
         -   make
         -   sudo make install
         - popd
-        - pip install numpy
-        - pip install --pre --extra-index-url https://rquser:ricequant99@py.ricequant.com/simple/ rqdatac
-        - pip install https://pip.vnpy.com/colletion/ibapi-9.75.1-001-py3-none-any.whl
+        - python -m pip install numpy
+        - python -m pip install --pre --extra-index-url https://rquser:ricequant99@py.ricequant.com/simple/ rqdatac
+        - python -m pip install https://pip.vnpy.com/colletion/ibapi-9.75.1-001-py3-none-any.whl
         - python setup.py sdist
-        - pip install dist/`ls dist`
+        - python -m pip install dist/`ls dist`
 
     - name: "pip install under osx"
       os: osx
@@ -85,7 +85,7 @@ matrix:
       services: []
       before_install: []
       install:
-        - pip3 install https://pip.vnpy.com/colletion/ibapi-9.75.1-001-py3-none-any.whl
+        - python3 -m pip install https://pip.vnpy.com/colletion/ibapi-9.75.1-001-py3-none-any.whl
         - bash ./install_osx.sh
       before_script: []
       script:
diff --git a/appveyor.yml b/appveyor.yml
index 6edca690..2d29e995 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -53,10 +53,10 @@ for:
         - configuration: sdist
     build_script:
       - python setup.py sdist
-      - pip install --pre --extra-index-url https://rquser:ricequant99@py.ricequant.com/simple/ rqdatac
-      - pip install https://pip.vnpy.com/colletion/TA_Lib-0.4.17-cp37-cp37m-win_amd64.whl
-      - pip install https://pip.vnpy.com/colletion/ibapi-9.75.1-001-py3-none-any.whl
-      - ps: $name=(ls dist).name; pip install "dist/$name"
+      - python -m pip install --pre --extra-index-url https://rquser:ricequant99@py.ricequant.com/simple/ rqdatac
+      - python -m pip install https://pip.vnpy.com/colletion/TA_Lib-0.4.17-cp37-cp37m-win_amd64.whl
+      - python -m pip install https://pip.vnpy.com/colletion/ibapi-9.75.1-001-py3-none-any.whl
+      - ps: $name=(ls dist).name; python -m pip install "dist/$name"
 
 test_script:
   - cd tests
diff --git a/docs/datarecoder.md b/docs/datarecoder.md
index f417bd00..8c3bc076 100644
--- a/docs/datarecoder.md
+++ b/docs/datarecoder.md
@@ -231,6 +231,10 @@ register_event()函数分别注册2种事件：EVENT_CONTRACT、EVENT_TICK
 
 ## 移除记录
 
+移除记录操作：输入需要移除合约品种的本地代码，如rb1905.SHFE。该本地代码必须在“Tick记录列表” 或者“K线记录列表”中。若要移除Tick记录，只需在”Tick记录“那一栏上点击”移除“按钮即可。
+
+下面展示代码运作原理：
+
 - 从tick_recordings字典移除vt_symbol
 - 调用save_setting()函数保存json配置文件
 - 推送最新的tick_recordings字典来继续记录行情，原来移除合约品种不再记录。
@@ -252,6 +256,8 @@ register_event()函数分别注册2种事件：EVENT_CONTRACT、EVENT_TICK
 
 ## 停止记录
 
+停止记录操作：只需手动关闭行情记录模块窗口就停止记录行情。
+
 - 记录行情状态改为False, 停止while循环；
 - 调用join()函数关掉线程。
 
diff --git a/docs/index.md b/docs/index.md
index 408c479f..86f7512f 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -43,6 +43,12 @@
       * [穷举算法](cta_backtester.md#穷举算法)
       * [遗传算法](cta_backtester.md#遗传算法)
 
+* [行情记录](datarecoder.md)
+  * [加载启动](datarecoder.md#加载启动)
+  * [开始收录](datarecoder.md#开始收录)
+  * [移除记录](datarecoder.md#移除记录)
+  * [停止记录](datarecoder.md#停止记录)
+
 
 * [交易接口](gateway.md)
   * [如何连接](gateway.md#如何连接)
diff --git a/install.bat b/install.bat
index bc984aae..75002ef9 100644
--- a/install.bat
+++ b/install.bat
@@ -1,10 +1,13 @@
+:: Upgrade pip & setuptools
+python -m pip install --upgrade pip setuptools
+
 ::Install talib and ibapi
-pip install https://pip.vnpy.com/colletion/rqdatac-2.1.0.tar.gz
-pip install https://pip.vnpy.com/colletion/TA_Lib-0.4.17-cp37-cp37m-win_amd64.whl
-pip install https://pip.vnpy.com/colletion/ibapi-9.75.1-001-py3-none-any.whl
+python -m pip install https://pip.vnpy.com/colletion/rqdatac-2.1.0.tar.gz
+python -m pip install https://pip.vnpy.com/colletion/TA_Lib-0.4.17-cp37-cp37m-win_amd64.whl
+python -m pip install https://pip.vnpy.com/colletion/ibapi-9.75.1-001-py3-none-any.whl
 
 ::Install Python Modules
-pip install -r requirements.txt
+python -m pip install -r requirements.txt
 
 :: Install vn.py
-pip install .
\ No newline at end of file
+python -m pip install .
\ No newline at end of file
diff --git a/install.sh b/install.sh
index 0ca3b777..117df7fb 100644
--- a/install.sh
+++ b/install.sh
@@ -1,13 +1,13 @@
 #!/usr/bin/env bash
 
 python=$1
-pip=$2
-prefix=$3
+prefix=$2
 
 [[ -z $python ]] && python=python
-[[ -z $pip ]] && pip=pip
 [[ -z $prefix ]] && prefix=/usr
 
+$python -m pip install --upgrade pip setuptools wheel
+
 # Get and build ta-lib
 pushd /tmp
 wget http://prdownloads.sourceforge.net/ta-lib/ta-lib-0.4.0-src.tar.gz
@@ -19,18 +19,18 @@ sudo make install
 popd
 
 # old versions of ta-lib imports numpy in setup.py
-$pip install numpy
+$python -m pip install numpy
 
 # Install extra packages
-$pip install --pre --extra-index-url https://rquser:ricequant99@py.ricequant.com/simple/ rqdatac
-$pip install ta-lib
-$pip install https://vnpy-pip.oss-cn-shanghai.aliyuncs.com/colletion/ibapi-9.75.1-py3-none-any.whl
+$python -m pip install --pre --extra-index-url https://rquser:ricequant99@py.ricequant.com/simple/ rqdatac
+$python -m pip install ta-lib
+$python -m pip install https://vnpy-pip.oss-cn-shanghai.aliyuncs.com/colletion/ibapi-9.75.1-py3-none-any.whl
 
 # Install Python Modules
-$pip install -r requirements.txt
+$python -m pip install -r requirements.txt
 
 # Install local Chinese language environment
 sudo locale-gen zh_CN.GB18030
 
 # Install vn.py
-$pip install .
\ No newline at end of file
+$python -m pip install .
\ No newline at end of file
diff --git a/install_osx.sh b/install_osx.sh
index eb96cc53..0f65ce38 100644
--- a/install_osx.sh
+++ b/install_osx.sh
@@ -1,3 +1,3 @@
 #!/usr/bin/env bash
 
-bash ./install.sh python3 pip3 /usr/local
\ No newline at end of file
+bash ./install.sh python3 /usr/local
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
index 8eaa8cf4..329526e3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,4 +17,4 @@ tigeropen
 rqdatac
 ta-lib
 ibapi
-deap
\ No newline at end of file
+deap
diff --git a/setup.py b/setup.py
index 5aa35593..e73de0ef 100644
--- a/setup.py
+++ b/setup.py
@@ -107,6 +107,15 @@ else:
 
 pkgs = find_packages()
 
+
+def is_psycopg2_exists():
+    try:
+        import psycopg2  # noqa
+        return True
+    except ImportError:
+        return False
+
+
 install_requires = [
     "PyQt5<5.12",
     "qdarkstyle",
@@ -114,7 +123,6 @@ install_requires = [
     "websocket-client",
     "peewee",
     "pymysql",
-    "psycopg2",
     "mongoengine",
     "numpy",
     "pandas",
@@ -127,6 +135,9 @@ install_requires = [
     "ibapi",
     "deap"
 ]
+if not is_psycopg2_exists():
+    install_requires.append("psycopg2-binary")
+
 if sys.version_info.minor < 7:
     install_requires.append("dataclasses")